Is Brett Baty usurping the Mets' third base job from Mark Vientos?

Sammon emphasized Baty's strong defense at third as the primary reason to give him the job; indeed, the 25-year-old has been an asset with his glove by totaling three Defensive Runs Saved and a positive Fielding Run Value (+1). In sharp contrast, Vientos has been one of the worst fielders in baseball with -7 DRS and -7 Outs Above Average, which ranks in the first percentile via Statcast.

In terms of offense, Baty also has the advantage so far. Although his total numbers are poor (.222/.247/.444, 91 wRC+), that was primarily the result of a brutal start to the year that resulted in a temporary demotion to Triple-A Syracuse. Since his return to the majors on May 7, Baty has hit four home runs with a .583 slugging percentage and 129 wRC+. The young infielder still needs to improve his plate discipline, as he has not drawn a walk since his call-up, but his hot bat and strong defense has greatly helped the currently-slumping Mets.

As for Vientos, he has been disappointing at the plate despite his bat serving as his primary advantage. He's slashing just .232/.299/.375 so far on the season, and has as many home runs as Baty (five) in almost 100 more plate appearances. When combined with his well-below average defense, it's not worth putting Vientos in the field over Baty.

However, the open spot at DH from Jesse Winker's injury benefits Vientos in multiple ways. In addition to allowing both him and Baty to play while having the latter's superior glove at the hot corner, the increased emphasis on hitting can allow Vientos to fully concentrate on his greatest strength as a player.

Time will tell whether Baty can solidify the job or if Vientos can reclaim it; after all, Vientos himself usurped the starting third base role from Baty last year. But if things continue the way they are, the Mets may have to change course on their third base plans yet again.