McClain won conference championships here and that wasn't to long ago, so coaches can be succesful. I think Dave C. can be succesful too, just takes a little bit of time to switch from the power run to the spread. I would say RichRod Is a decent coach (almost led West virginia to the national title game) and he struggled bringing a productive spread to Michigan (and they have way more resources than us).
Point being Schroyer had four years to turn around the bball program and DC is only in year two ( I think we can all agree it is more difficult to turn around a football program). Way to early to tell if DC is a good coach but it is evident schroyer is a bad one.