Fair or unfair, the hitting coach will have to be changed if the offense doesn't right their course. Despite some late-inning heroics last night, here is the Twins offense in 2021:
Innings 1-6: .753 OPS
Innings 7+: .680 OPS
That's absurd and is a huge reason why this team has such a terrible record. They lose 10% of the their OPS the moment the sixth inning ends.
Is that the hitting coach's fault? Er, probably not, as he's definitely not out there telling a bunch of veterans to start missing the ball after they've batted twice. Could the team approach at the plate be partially responsible for that huge drop in performance? Sure, that's definitely a possibility but it still doesn't cover even most of that 10% drop in OPS.
But while the team can't fire all the players, they can always fire the coach, even if it isn't his fault (or even mostly his fault). And that's what will probably happen if this keeps up for another month or more.