Buckeye heads exploding over this moreso because not one Buckeye tried to stop it than the actual planting of the flag. They're pissed at Day for supposedly creating a soft culture.
Whoever the new coach is he's got to take a hard look at keeping Mickey. I'd keep him as he's exactly the type of individual you need to build the culture. Not keeping him would be a mistake. Evidence: like he said, the team, the coaches never quit.