Oakland, Seattle Make Marginal Infield Upgrades

It’s nearly February and the free agent pool is thinning out. Most of the big names have already flown off the board. By our projections, only five unsigned players forecast to amass at least 1 WAR in the upcoming season, only three of whom are position players. Most teams have already filled out their Opening Day starting lineups; now their focus shifts to improving the fringes of their 26-man roster, searching for a couple of additional wins or insurance in case of injuries. The Mariners and the A’s, two AL West teams with very different outlooks for 2023, each recently made such an addition, inking a veteran to bolster infield depth. Let’s take a look.
Mariners sign Tommy La Stella to a league-minimum deal
Formerly a bench infielder and designated pinch hitter for the Cubs (his league-leading 91 pinch hit appearances in 2018 has not been matched since), La Stella was traded to the Angels with two years of team control remaining for a prospect who never threw a pitch in Chicago’s system. In 2019, he maintained the contact skills and excellent plate discipline that made him a league-average hitter, but he improved in another facet of his game that was emblematic of the juiced ball era. That year, his fly ball rate, which had previously sat around the 20% mark, climbed to 25%; that, combined with a small increase in his pull rate, led to a power break out. Despite lacking traditional power indicators like barrels and a high maximum exit velocity, La Stella made the most of his aerial contact (and the favorable dimensions of Angels Stadium) to post a career-high .486 slugging percentage and hit home runs at a rate of 30 per 600 PA, an excellent mark even during the heightened offensive environment. His absolute refusal to swing and miss played a big part in this as well; his minuscule 8.7% strikeout rate gave him plenty of balls in play, many of which left the yard:
Stat/Metric | Percentile Rank |
---|---|
Hard Hit% | 16 |
Barrel% | 26 |
Avg. Exit Velocity | 32 |
Max Exit Velocity | 43 |
HR% | 72 |