Bryse Wilson

About a quarter of the way through the 2024 season, I took a look at how the most prominent examples of teams’ attempts to turn an established reliever into a starter had progressed. At the time, the majority of these experiments were going well, by and large. At that mid-May juncture, most of the relievers making the switch had yet to reach their innings workloads from the season prior. Now that we’re at the season’s halfway point, that’s no longer the case. Many of the pitchers striving to make this jump are now approaching or have already eclipsed their 2023 innings totals — if not their career-high workloads — so it seems a good time to check back on how they’re faring.

As a reminder, the focus here is pitchers who pitched exclusively or near-exclusively out of the bullpen last season. Someone like the Rays’ Zack Littell or Red Sox’ Kutter Crawford, who moved into the rotation last summer and continued that move this year, isn’t the focus.

Garrett Crochet, LHP, White Sox

Stats at quarter mark: 9 games started, 46 2/3 innings, 4.63 ERA (2.47 SIERA), 34.2 K%, 4.8 BB%, 43.8 GB%

Stats since: 9 GS, 54 2/3 innings, 1.65 ERA (2.27 SIERA), 36.3 K%, 5.2 BB%, 45.5 GB%

At the 25% mark of the season, Crochet sat on a pedestrian ERA but elite K-BB profile. His production had been skewed by a series of three straight rough outings: five runs versus the Reds, seven in Philadelphia and another five in Minnesota.

Those three starts still stand as the worst three of his season. Crochet hasn’t yielded more than three runs in a single outing since that time. He’s not only maintained his elite K-BB profile but improved upon it, slightly upping his strikeout rate while sustaining his exceptional command. No starter in baseball is striking out hitters at a higher rate than Crochet, and only 12 are limiting their walks more effectively.

At last check, Crochet had ace-like rate stats but pedestrian run-prevention numbers overall. That’s no longer the case. The only question as to whether Crochet is a bona fide No. 1 starter is one of durability. All of the pieces are there, but Crochet has never pitched a full season in the rotation. In fact, this year’s combined 101 1/3 innings not only stand as a career-high, they eclipse his combined total of professional innings pitched — majors and minors combined — since being selected in the first round of the 2020 draft.

With two and a half years of team control left, a bottom-of-the-barrel $800K salary and the worst team in baseball behind him, Crochet stands as a clear-cut trade candidate. The Sox reportedly broached the possibility of an extension with him but are now expecting to trade him after contract talks failed to progress. A new team will have to worry about how Crochet will hold up down the stretch, but there’s little doubting that he’s a front-of-the-rotation talent.

Jordan Hicks, RHP, Giants

Stats at quarter mark: 9 GS, 48 innings, 2.44 ERA (3.99 SIERA), 19.9 K%, 8.2 BB%, 56.2 GB%

Stats since: 8 GS, 37 2/3 innings, 4.54 ERA (4.29 SIERA), 22.2 K%, 10.2 BB%, 45.8 GB%

Early on, Hicks was thriving in terms of run-prevention in spite of a pedestrian strikeout rate. He’s picked up the strikeout rate a bit since that time but has seen his command, ground-ball rate and velocity all drop. After averaging 5 1/3 innings through his first nine starts, Hicks is averaging about 4 2/3 innings per outing and has seen his average sinker velocity drop by nearly two miles per hour. Since mid-May, his sinker is averaging 93.5 mph — down from the 95.5 mph at last check and even further from the 100.2 mph Hicks averaged in his time as a reliever.

Hicks has struggled to turn the lineup over multiple times. Opponents own an awful .196/.268/.348 slash when facing him the first time in a game. Unlike many pitchers, who experience a stark drop when facing opponents a third time, Hicks’ troubles begin the second trip through the order. Opponents in those settings carry a .267/.373/.382 slash. He’s only faced a hitter for the third time on a given day 57 times this season, but opponents have batted .283/.333/.434 in that small sample.

Back in May, I noted that opponents had posted an embarrassing .079/.167/.105 slash in the 42 plate appearances Hicks had finished off with a splitter. They’ve fared better against the pitch since that time, though it’d be hard to have performed much worse. And, with opponents still slashing only .160/.244/.272 against the pitch (which Statcast credits with a .270 expected wOBA), that newly implemented offering still has the look of a plus pitch.

Hicks has remained reasonably effective but hasn’t been the roaring success he was through the first quarter of the season. San Francisco signed the 27-year-old flamethrower to a four-year, $44MM deal and did so with an eye toward Hicks starting, so it’s clear this is a multi-year undertaking. Nothing Hicks has done to date suggests he decidedly can’t handle being a starter, but he’s faded from his early-season production, which is perhaps to be expected for a pitcher whose 85 2/3 innings are already a career-high mark.

The manner in which Hicks has begun to fade only further underscores the remarkable nature of Crochet’s performance to date as he navigates uncharted workload territory. That said, Hicks has an overall 3.36 ERA with a nearly average strikeout rate, a manageable walk rate and a plus ground-ball rate. There have been some roadblocks of late, but this year could serve as a launching pad to a better performance in 2025-27, when he’s more accustomed to his current workload.

Reynaldo Lopez, RHP, Braves

Stats at quarter mark: 7 GS, 40 1/3 innings, 1.34 ERA (4.00 SIERA), 25.2 K%, 10.1 BB%, 40.2 GB%

Stats since: 7 GS, 39 innings, 2.08 ERA (3.58 SIERA), 26.1 K%, 7.0 BB%, 32.7 GB%

The Braves have been judicious with Lopez’s start-by-start workload thus far. He hasn’t topped 94 pitches in a single appearance and has only recorded four outs after the sixth inning all season. So far, that level of caution has paid off. Since last check, Lopez hasn’t lost any life of his heater and has actually tacked on 0.4 mph on average, per Statcast.

Atlanta doesn’t often give Lopez the opportunity to turn the lineup over a third time, and the opportunities he’s had haven’t gone well. Lopez has yielded a mid-.500s OPS to opponents the first or second time through the order but has been tagged for a .245/.359/.396 batting line the third time through. It’s not egregious, but it’s far less dominant than his first couple trips through a lineup.

Lopez is still running a plus strikeout rate, and he’s improved his command and his velocity as the season has worn on. As the only member of this list who’s previously worked multiple full seasons as a starter, he might have been the best-equipped to handle this transition, and so far it doesn’t appear he’s slowing down much at all.

Lopez entered the season with a career 71.1% strand rate, and he’s currently stranding 86.3% of his baserunners. His .279 average on balls in play is lower than league average but right in line with his career .281 mark. He’s allowed only 0.45 homers per nine frames, thanks in large part to a paltry 4.7% homer-to-flyball ratio that sits well shy of his career 11.3% mark. There’s some correlation there; it’s easier to strand runners if you’re almost never allowing a ball to clear the outfield fence, after all. In all likelihood, both that HR/FB and strand rate will trend toward his career marks as the season (and, more broadly, his three-year contract) wears on, but the outside-the-box bet on Lopez as a starter looks like one that will pay off for Atlanta.

Jose Soriano, RHP, Angels

Stats at quarter mark: 7 GS, 38 2/3 innings, 3.72 ERA (4.03 SIERA), 20.3 K%, 9.5 BB%, 61.5 GB%

Stats since: 5 GS, 33 2/3 innings, 3.21 ERA (3.97 SIERA), 16.9 K%, 6.2 BB%, 58.6 GB%

Soriano was continuing his sharp start to the season when he was scratched from a mid-June start due to abdominal pain. The Halos discovered an infection in the young righty’s abdomen that required a trip to the injured list and was expected to sideline him a few weeks. That’s thrown a bit of a wrench into his rotation breakout, though there’s no indication it’s a serious issue and the Halos can take solace in the fact that there’s no arm issue at play. And, after pitching just 65 1/3 innings last season, Soriano is already at 72 1/3 frames this year, so perhaps it can serve as a well-timed breather for his right arm.

The 25-year-old Soriano’s first run as a starter in the big leagues this season looked promising through mid-May and continues to do so. Impressively, he hasn’t lost any life on his four-seamer or sinker despite the shift from short relief to starting work. Statcast measured his average four-seamer at 98.9 mph in both 2023 and 2024, while his sinker clocked in at an average of 97.7 mph in 2023 and is actually marginally better in 2024 at 97.8 mph.

That sinker has helped Soriano run up an elite ground-ball rate; his 60.1% grounder rate ranks third among the 145 big league pitchers with at least 50 innings pitched this year, trailing only Framber Valdez (61.4%) and Cristopher Sanchez (60.3%). That uptick in grounder rate over last year’s 51% mark correlates with a huge spike in Soriano’s sinker usage (13.3% in ’23, 40% in ’24). The extra sinker usage has come at the expense of some four-seamers (25.8% in ’23, 17.8% in ’24) and particularly Soriano’s knuckle curve (41.2% in ’23, 27.5% in ’24).

The tweak in repertoire could come down to a pursuit of efficiency as Soriano looks to work deeper into games. The right-hander fanned 30.3% of opponents last season and registered a hearty 14.8% swinging-strike rate but also required 16.6 pitches per inning pitched, on average. In 2024, his strikeout rate is down to 20.3% with a 10.2% swinging-strike rate. But he’s significantly upped his grounder rate and is now averaging just 15.1 pitches per frame. Soriano averaged 6 2/3 innings per start in the five appearances between our last check and this one, so it seems clear he’s placing an emphasis on being able to work deeper into games in his new role. Opponents are hitting .313/.421/.521 in 58 plate appearances when facing him a third time, so the results aren’t there so far, however.

Bryse Wilson, RHP, Brewers

Stats at quarter mark: 11 G (5 GS), 34 innings, 2.65 ERA (4.60 SIERA), 20.4 K%, 10.9 BB%, 39.1 GB%

Stats since: 9 G (4 GS), 44 innings, 5.52 ERA (4.27 SIERA), 17.6 K%, 6.7 BB%, 41.3 GB%

Wilson hasn’t technically “started” each of his past nine appearances, but he’s averaged five innings per outing while working as a starter and bulk reliever (on the heels of an opener). Effectively, the Brewers are using him as a starter — they’re just shielding him from the top-third of some lineups on occasion, when the matchup dictates.

This wasn’t a planned move to a longer role. The former Braves top prospect and Pirates hurler entered the season slated for a second straight season as Milwaukee’s long man, but injuries to Wade Miley, Joe Ross, Robert Gasser and DL Hall combined to not only push Wilson into this rotation-ish role but to keep him there. After pitching 76 2/3 innings of pure long relief in 2023, Wilson is already at 78 frames and counting.

As one would typically expect, Wilson’s fastball has taken a slight dip as he’s stretched out for longer stints. He averaged 94 mph through the season’s first quarter, but several of those earlier appearances were still in short relief. He’s averaging 93.2 mph since mid-May and has seen his strikeout rate drop but also seen his walk rate improve. As he’s been tasked with facing more lefties, Wilson has upped his changeup and cutter usage a bit, doing so at the expense of his four-seamer and curveball.

Wilson has been far too homer-prone this season (1.62 HR/9) and is giving up too much hard contact (45.8%, per Statcast). More so than any pitcher on this list, he’s run into troubles the third time through the order; in 45 such plate appearances, they’ve posted a Herculean .400/.467/.650 slash. Those plate appearances account for just 13.6% of Wilson’s batters faced this season but have resulted in 21.5% of his home runs allowed. Wilson seems best suited for a long relief role or a five-inning start/bulk role, but he’s pitched more than five innings six times this season and is giving Milwaukee some desperately needed innings when their rotation is in tatters.

A.J. Puk, LHP, Marlins

Stats at quarter mark: 4 GS, 13 2/3 innings, 9.22 ERA (7.13 SIERA), 15.6 K%, 22.1 BB%, 31.9 GB%

Stats since: 0  GS, 21 1/3 innings, 2.95 ERA (3.36 SIERA), 21.4 K%, 4.8 BB%, 44.3 GB%

The Marlins quickly pulled the plug on the Puk rotation experiment, and it’s worked out for all parties. The former No. 6 overall pick (A’s, 2016) turned heads as a starter in spring training but was shelled in what currently stand as the only four starts of his big league career (though Puk was a starter both for the University of Florida and in the minor leagues).

It’s unlikely that Puk would’ve continued to struggle quite so substantially had Miami continued using him as a starter, but the left-hander certainly looks more comfortable in the short relief role in which he thrived from 2022-23 (123 innings, 3.51 ERA, 19 saves, 22 holds, 29.4 K%, 6.9 BB%). He’s performing far better in his old role, and he required a three-week stint on the injured list for shoulder fatigue following his early start in the rotation.

There’s no reason to fault the Marlins for trying to stretch out a clearly talented reliever who has a track record in the rotation, but Puk is back in the bullpen and figures to draw attention over the next month from teams seeking left-handed bullpen help. He’s controllable through the 2026 season.

Tyler Alexander, LHP, Rays

Stats at quarter mark: 7 G (5 GS), 39 2/3 innings, 5.45 ERA (4.44 SIERA), 19.1 K%, 6.9 BB%, 30.4 GB%

Stats since: 3 G (1 GS), 17 innings, 7.94 ERA (3.68 SIERA), 20.3 K%, 1.4 BB%, 27.8 GB%

Alexander entered the season in the same type of role Wilson currently holds with the Brewers: occasional starter and frequent bulk reliever behind an opener. He made a handful of solid appearances early on, though the value of those was offset by some particularly rough outings versus the Yankees (six runs in seven innings) and the Royals (eight runs in five innings).

Following our last check-in, Alexander made three appearances before being optioned to Triple-A Durham, where he’s worked quite effectively out of the Bulls’ rotation: five starts, 29 2/3 innings, 3.64 ERA, 24.2% strikeout rate, 2.4% walk rate. That should position him as a depth option in the event of a big league injury and/or trade. Tampa Bay reportedly has considered fielding offers on current members of its big league rotation — Zack Littell and Aaron Civale, most notably. Part of that is due to the looming returns of Shane Baz and Jeffrey Springs, but Alexander gives them another rotation candidate who’s performed well recently in Durham.

The Rays haven’t abandoned the Alexander starting experiment, but for the time being he’s not in their big league rotation plans. Speculatively, that could make Alexander himself a trade option for teams seeking back-of-the-rotation depth, though if the Rays do ultimately move Littell, Civale or a more expensive arm like Zach Eflin, they may not want to deplete the rotation depth much further.

The 2023-24 offseason saw several teams go outside the box to add to their rotation mix by announcing plans to convert an established reliever into (or back into) a starting pitcher. It’s not a new concept by any means, of course, but it’s always notable when a player who’s found some success in one pitching role is shifted to the other — be it one-inning relievers stretching out to join a rotation or struggling starters shifting to the ’pen and hoping to find new life as their stuff plays up.

In some instances — e.g. Jordan Hicks, Reynaldo Lopez — the pitchers in question signed lucrative multi-year deals as part of this planned pivot. For others, this role change comes amid their original six seasons of club control and could greatly impact their earnings in arbitration and/or in free agency down the road.

Now that we’re about a quarter of the way through the year, it seems like a good time to check in on how some of these role changes are playing out. Readers should note that this rundown will focus on pitchers who pitched exclusively or near-exclusively out of the bullpen last season. Pitchers like Boston’s Garrett Whitlock (who started 10 games last year and nine in 2022) or Tampa Bay’s Zack Littell (who moved to the rotation last summer and finished out the ’23 campaign as a starter) aren’t the focus here so much as arms who were more strictly confined to short relief recently.

Since so many of these transitions are going to bring about clear workload concerns, we’ll check back in periodically throughout the season. For now, here’s how things are going through about 25% of the schedule.

Jordan Hicks, RHP, Giants

Hicks’ transition from flamethrowing late-inning reliever to … well, flamethrowing starting pitcher has gone seamlessly thus far. It’s only nine starts and 48 innings, but the 28-year-old boasts a 2.44 ERA in his move to the rotation. A career-low 19.9% strikeout rate is a red flag, but Hicks’ 8.2% walk rate is lower than the league average and a career-best mark as well. His 56.2% grounder rate isn’t quite as high as the 60% mark he carried into the season but is still more than 10 percentage points above average.

As one would expect, Hicks’ blazing sinker has lost quite a bit of velocity now that he’s not throwing one max-effort inning at a time. His sinker sat at 100.2 mph last year but is clocking in at 96 mph in 2024. Even with four fewer miles per hour on his primary offering, however, Hicks has more than enough velocity to keep hitters off balance.

Hicks has also fully incorporated the splitter he tinkered with in 2023 into his arsenal this year. After throwing it just 1.6% of the time last season, he’s thrown 22.5% splitters in 2024. Opponents may as well not even bother swinging at the pitch. Hicks has finished off 42 plate appearances with a splitter, and hitters have posted a .079/.167/.105 slash in those instances. Opposing batters have chased the pitch off the plate at more than a 35% clip, and Hicks boasts a huge 42.9% whiff rate on the pitch, per Statcast.

The big question for Hicks, as it is for virtually any pitcher making this transition, is how his arm will hold up once he begins pushing it into uncharted waters. Hicks has never topped 77 2/3 innings in a big league season. That mark came way back in his 2018 rookie showing. The 105 frames Hicks tallied as a minor league starter in 2017 are the most he’s ever pitched in a full season. He’ll be approaching his MLB-high after he makes another four starts or so and will be on the cusp of a new career-high about 10 to 11 starts from now — when there’s still roughly half a season left to play. Hicks wasn’t even especially durable as a reliever, only surpassing 35 appearances in two of his five prior big league seasons. The early returns are outstanding, but the real test will probably come in late June and into July.

Reynaldo Lopez, RHP, Braves

Unlike Hicks, Lopez is no stranger to starting games at the MLB level. He started 73 games for the White Sox from 2018-20 after coming over from the Nationals alongside Lucas Giolito and Dane Dunning in the Adam Eaton trade. The first of those three seasons went well, but Lopez stumbled in 2019-20 and began to transition to the bullpen in 2021.

The shift to a relief role seemed to suit the right-hander well. His already impressive velocity played up even further. Lopez averaged better than 95 mph as a starter in ’18-’20 but saw that number jump to 97.1 mph in 2022 and a massive 98.4 mph in 2023. Over those two seasons, he pitched to a sharp 3.02 earned run average. His rate stats were somewhat uneven, as he showed pristine command (4.3% walk rate) but an only slightly higher-than-average strikeout rate in ’22 before jumping to a huge 29.9% strikeout rate in ’23 … but pairing it with a bloated 12.2% walk rate. Taken together, however, Lopez gave the Sox 131 1/3 innings with that 3.02 ERA, 31 holds, six saves, a 27.4% strikeout rate and an 8.5% walk rate.

When he signed with the Braves for three years and $30MM, that generally fell in line with expectations for what he’d command as a late-inning reliever. However, it quickly became clear that the Braves were going to stretch Lopez back out. There was plenty of skepticism — myself very much included, admittedly — but the experiment has gone better than anyone could’ve imagined.

Thus far, Lopez has not only been the Braves’ best starter but one of the most effective starters in the league. He’s pitched 35 1/3 innings of 1.53 ERA ball. His velocity has dipped back down to his 2018-20 levels, sitting 95.6 mph, but that’s to be expected working out of the rotation. His 25.5% strikeout rate is better than average but not elite. His 9.9% walk rate could stand to come down. But Lopez is throwing more curveballs than ever before (10%), has largely abandoned his changeup and is keeping the ball on the ground at a career-best 41.1% rate. That’s a bit shy of the 42.8% league average but noticeably higher than the 35% clip he posted during his time with the White Sox.

The uptick in grounders is one reason that Lopez is yielding a career-low 0.51 homers per nine innings. The other is a 5.4% homer-to-flyball rate that he almost certainly can’t sustain. That fluky HR/FB and an abnormally high 88.7% strand rate are part of the reason metrics like SIERA (3.87) and xFIP (3.79), which normalize HR/FB, tend to peg him for some regression. Still, even if he’s bound to see his ERA tick up by a couple runs, Lopez has looked great through his first six turns.

Time will tell just how his arm can handle a return to his 2018-19 workloads, but the early results are excellent — and the importance of his breakout is magnified by the loss of ace Spencer Strider to season-ending elbow surgery. Notably, Lopez exited last night’s start with some tightness in his back, but manager Brian Snitker suggested after the game that he’s likely to make his next start.

A.J. Puk, LHP, Marlins

On the other side of the coin, the Marlins’ efforts to move Puk back into a starting role quickly went down in flames. Puk, a former No. 6 overall pick who worked as a starter in the minors, looked excellent this spring. He pitched 13 2/3 innings over four starts and two earned runs with a 23-to-4 K/BB ratio. The transition could hardly have gotten out to a more promising start.

In his first four regular-season starts, Puk also pitched 13 2/3 innings. The similarities stop there. Opponents bludgeoned Puk for 14 earned runs on 19 hits and a stunning 17 walks. He fanned only 12 of his 77 opponents (15.6%).

Miami placed Puk on the injured list on April 20 due to left shoulder fatigue. He returned from the injured list just yesterday. Despite myriad injuries in their rotation, the Fish have already pulled the plug on the rotation experiment for Puk, announcing that he’ll be back in the bullpen following his stay on the injured list. It’s a role he thrived in over the past two seasons, logging a 3.51 ERA, 29.4% strikeout rate and 6.9% walk rate while piling up 22 saves and 19 holds.

If Puk returns to form as a reliever — he was particularly impressive in ’23, striking out 32.2% of opponents against a 5.4% walk rate — the ill-fated rotation gambit will be little more than a footnote in what hopefully ends up as a strong overall career as a reliever. If Puk’s struggles persist, however, there’ll be plenty of second-guessing the decision to take one of the team’s best relief arms and stretch him out despite a litany of injury troubles that had combined to limit Puk to only 147 2/3 innings in his entire career prior to this season.

Garrett Crochet, LHP, White Sox

Crochet has worked to a pedestrian earned run average on the season due to a bevy of home runs allowed, but the former first-rounder who’s drawn comparisons to Chris Sale since being drafted by the White Sox has turned in elite strikeout and walk numbers. The 4.63 ERA looks unimpressive, but Crochet has fanned more than a third of his opponents (34.2%) against a pristine 4.8% walk rate.

Crochet boasts an excellent 14.5% swinging-strike rate and is averaging 96.9 mph on his heater. That’s a ways from the 100.2 mph he averaged in six innings as a rookie in 2020, but Crochet has had Tommy John surgery since that time and is working in longer stints now as opposed to bullpen work in ’20. This year’s velocity actually slightly exceeds his average velocity from working purely as a reliever in 2022-23.

In terms of workload concern, Crochet is up there with Puk in terms of extreme uncertainty. He entered the season with a total of 73 big league innings since his No. 11 overall selection in 2020 and is already at 46 2/3 innings on the young 2024 campaign. So long as he keeps missing bats and limiting walks anywhere near his current levels, the run-prevention numbers will come down — FIP and SIERA peg him at 3.33 and 2.37, respectively — but it’s anyone’s guess as to how Crochet will hold up. He skipped the minor leagues entirely, so even if you add in his whole minor league body of work, that’d only tack last year’s 12 1/3 rehab innings onto his track record. Going from a total of 85 1/3 professional innings over a four-year period to a full starter’s workload is bound to have some bumps in the road, but so far Crochet looks quite intriguing as a starting pitcher.

Jose Soriano, RHP, Angels

The Angels nearly lost Soriano back in 2020, when the Pirates selected him in the Rule 5 Draft. At the time, Soriano was wrapping up his rehab from 2020 Tommy John surgery and could’ve been stashed in a rebuilding Pittsburgh bullpen upon his reinstatement from the injured list. A setback in his recovery early in the season prompted another wave of imaging and revealed a new tear, however. Soriano underwent a second Tommy John surgery on June 16, 2021. He was eventually returned to the Angels.

Unfortunate as that back-to-back pair of surgeries was, Soriano’s injury troubles allowed the Angels to keep him in the system. They’re now reaping the benefits. The flamethrowing righty made 38 relief appearances last season and pitched to a quality 3.64 ERA with a huge 30.3% strikeout rate — albeit against a troubling 12.4% walk rate. Soriano averaged 98.6 mph on his heater last year and wound up picking up 15 holds, as the then-rookie righty increasingly worked his way into higher-leverage spots.

The Angels announced early in spring training that Soriano would be stretched out as a starter. His ramp-up continued into the regular season. His first two appearances this year came out of the bullpen but both spanned three innings. He’s since moved into the rotation and has looked quite impressive. Through his first seven starts, Soriano touts a 3.58 ERA with an above-average 24.8% strikeout rate and an outstanding 62.8% ground-ball rate. Even though he’s working in longer stints, he’s improved his fastball and is now sitting at 99.3 mph with it. His 12.4% walk rate still needs improvement, but the returns here are quite promising.

Soriano only pitched 65 1/3 innings between the minors and big leagues last year, and he’s already at 38 2/3 frames on the 2024  season. He’s never pitched more than 82 1/3 innings in a professional season. We’ll see how he fares as he pushes past those thresholds, but there’s a lot to like with this rotation move — even though it’s garnered far less attention than some of the others around the game.

Tyler Alexander, LHP, Rays

The Rays obviously have a knack for finding hidden gems and converting unheralded arms into viable starting pitchers — hey there, Zack Littell — and Alexander is an example of their latest efforts to do so. The left-hander has started for the Tigers in the past and functioned in a swingman role, but the Rays picked him up in a low-cost move following a DFA in Detroit with the idea of stretching him out. Since it’s Tampa Bay, not all of Alexander’s “starts” have been, well, actual starts. He’s followed an opener on multiple occasions already, but he’s followed that one- or two-inning table-setter with at least four innings each time out.

Overall, Alexander has made eight appearances and averaged just under five frames per outing (39 2/3 total innings). He’s sitting on a pretty rough 5.45 ERA, thanks in part to a six-run drubbing at the hands of the Yankees last time out (though he did at least complete seven frames in that start, helping to spare the Tampa Bay bullpen). Alexander’s 19.1% strikeout rate is about three percentage points shy of average. His 6.9% walk rate is about two points better than average. However, he’s taken his longstanding status as a fly-ball pitcher to new heights in 2024, inducing grounders at just a 30.4% clip.

Alexander’s 14.5% homer-to-flyball ratio is only a couple percentage points north of average, but because of the sheer volume of fly-balls he’s yielding, he’s still averaging more than two taters per nine frames. Opponents have posted an ugly 11.8% barrel rate against him (ugly for Alexander, that is). If he can’t cut back on the fly-balls and/or start finding a way to avoid the barrel more regularly, it’s going to be hard for Alexander to find sustained success. The Rays don’t convert on every dart-throw — much as it’s fun to joke to the contrary — and so far the Alexander experiment hasn’t paid off.

Bryse Wilson, RHP, Brewers

Wilson’s move to the rotation wasn’t necessarily planned, but injuries up and down the Brewers’ staff forced the issue. Five of his past six outings have been starts and he’s sporting an eye-catching 1.78 ERA in that span. The rest of the numbers in that stretch are less impressive. Wilson has a tepid 17.3% strikeout rate in that stretch but has walked an untenable 13.5% of opponents. Opponents have posted a hefty 45.7% hard-hit rate (95 mph or more) against him during that time. Were it not for a .191 BABIP and 92.2% strand rate, the ERA wouldn’t look nearly as rosy. Metrics like FIP (4.64) and SIERA (5.34) are quite bearish.

Wilson is still scheduled to take the ball on Saturday in Houston, but his recent stretch of run-prevention doesn’t seem sustainable without some improvements in his K-BB profile.