Run-prevention drives the Mets’ winter as a crowded infield tests balance. Baty, Vientos, Mauricio, Acuña, and Williams compete for a single third-base job while Lindor and McNeil are under contract, leaving no easy fix. Trade chatter on McNeil or Vientos lingers, but McNeil’s defense and versatility keep him appealing. A veteran anchor like Bregman or Arenado could stabilize the corner, while internal prospects push for reps. Stearns prioritizes flexibility and aging-pitcher risk.