Johan Santana

It seems like an odd thing to say about a team currently sitting at 67-71, but next year's version of the New York Mets may not have room at the inn for additional acquisitions.

Currently starting for the Mets are four pitchers who have certainly performed well enough to be relied upon in 2011, while a fifth, currently auditioning, has the best stuff of any of them. Furthermore, all five are under team control for next year.

Let's break the staff down:

Next year's Opening Day starter is likely to be Johan Santana, who has weathered an alarming early-season slide to become the Santana the Mets expected when they signed him to a six-year, $137.5MM contract after trading for him in in February 2008. Through the end of June, Santana pitched to a respectable 3.55 ERA, but that masked a strikeout rate on the season of just 5.7 K/9, down more than two per nine from his 2008-2009 levels.

Since July 1, however, Santana has a 2.37 ERA, with a far stronger 7.4 K/9. It appears that temporary dip may have been Santana recovering from elbow surgery – Santana appears to believe that's the case. It is certainly a relief to the Mets, who owe Santana $22.5MM in 2011, $24MM in 2012 and $25MM in 2013.

Meanwhile, the best ERA among the starters belongs not to Santana, but to R.A. Dickey, who actually began the year in Triple-A. And while it is tempting to believe a 2.91 ERA from a 35-year-old pitcher who entered the season with a career 5.43 ERA is a fluke, there are plenty of reasons to believe otherwise in this case.

For one thing, Dickey has only been relying on his knuckleball for five years and his minor league performance has improved steadily since. For another, his peripherals are quite good, particularly his 2.2 walks per nine innings, despite throwing a huge majority of knucklers, a notoriously hard pitch to control.

With his limited time in the major leagues, Dickey has yet to accrue enough service time for free agency, so the Mets control him merely by offering arbitration. The smart money here is on the two sides agreeing to a multi-year deal that avoids arbitration and provides Dickey with some security. Remember: Phil Niekro had 12 200-plus inning seasons after age 35. The clock is different with knuckleball pitchers.

Another mainstay for 2011 is Jon Niese, who has impressed all year long and now has a 3.85 ERA with 3.0 walks and 7.5 strikeouts per nine innings. His numbers are actually skewed by three recent poor starts; the Mets have left Niese in games until he looked fatigued, rather than managing his workload more cautiously. 

The fourth horseman for the Mets is Mike Pelfrey, who seems to constantly be disappointing people who are waiting for him to be something other than a reliable innings-eater. Pelfrey's fluctuating ERA- 3.72 in 2008, 5.03 in 2009, 3.96 in 2010- is almost entirely a function of luck and defense, with peripherals staying ludicrously consistent in all three seasons. Even during his 10-2, 2.93 ERA start in 2010, his strikeout rate never reached six per nine innings. Pelfrey will almost certainly be offered arbitration and remain in the rotation in 2011.

That leaves the fifth spot, and Jenrry Mejia, the 20-year-old with the blazing fastball and intermittent command of his secondary pitches, aims to fill the role. He made his first major league start last Saturday, after his lone Triple-A start.

It is nearly impossible to know exactly what Mejia can give the Mets in 2011. His upside is certainly high, with terrific movement on his curveball and changeup to go along with a major league fastball that sits in the mid-nineties. But he is also an inexperienced pitcher with no track record of starting success, aside from a combined 17 starts above Single-A.

Still, with plenty of other holes and signals from the team that very little money will be spent this offseason, Mejia will likely get the opportunity to learn on the job.

One can imagine the only opportunities New York will have for starters in 2011 will be in the area of organizational depth. If Mejia falters, or one of the other four pitchers gets injured, the only Plan Bs available right now are the underwhelming Dillon Gee (who starts tonight) and Tobi Stoner, or the much-maligned Oliver Perez, who will head to the Mexican League after the season and try to find his fastball.