Part of the reason the pitching went south is because the Sox lead the league in BABIPA, which is about the defense.
Also, as pointed out earlier, the Sox pitching is third in K’s but 21st in K%. That’s an impressive split. A big part of that is the defenses inability to get outs on batted balls.
COVID might have weakened the pitching and hitting, but this also exposed that those facets were carrying the team. And once the Kutter Crawford’s and Reynal Espinal’s are pressed into service, it magnifies where the team truly struggles…