People think a professional MLB hitter doesn't know what to do if he bats 2nd or 3rd or 7th? Like, they literally don't know their role is to get hits?
My theory is managers matter much more off the field than on. That this isn't football where the coaches call plays. Does a manager matter on field? Yes.
For those saying "he's average" over his tenure.....how many games would a better manager have won the year they had 1 good SP?