Sherrone is struggling as Michigan's head coach. He has gone from top of the mountain to maybe the Music City Bowl. He does not know how to be the head coach of Michigan Football. It's a job that can't be your first head coaching role. Lloyd Carr was in the program for 100 years prior to the getting the job. We all know how it worked out for Gary Moeller. RR and Hoke had years of head coaching experience and couldn't handle the job.
Sherrone doesn't have anybody on staff he can lean on for advice. If Michigan had hired Jesse Minter he could talk to his dad who was a former longtime head coach and was on staff.