It’s not surprising at all to see these two teams line up on a transaction of this nature. The Giants have claimed pitcher after pitcher under president of baseball operations Farhan Zaidi, quite often going on to attempt to slip them through waivers. And the Marlins have dropped a variety of interesting but not-yet-established relief pitchers this winter, with quite a few landing on other 40-man rosters.
Garcia was rather successful last year, compiling 50 2/3 innings of 3.02 ERA ball. He lacks eye-popping strikeout numbers, but does get a solid number of groundballs and was quite successful at limiting hard contact. Garcia also found equal success against right and left-handed hitters in 2019, though fielding-independent pitching measures suggested he was much more effective when facing southpaw swingers.
As for Smith, he was added through the waiver wire last August. The 29-year-old had some effective outings last in the year with San Francisco but has obviously yet to show he’s a reliable MLB relief option. Over 135 2/3 career innings at the game’s highest level, Smith carries a 6.57 ERA with 9.5 K/9 and 5.0 BB/9.