I'm sure you saw all the news.
For this to be the hire it takes to replace a 74% winning HC, he's gotta get a spectacular staff in here. I'm not saying Muschamp isn't spectacular, but if you are going to stake your HC coaching career on Muschamp, there better be a very good agreement about behavior, approach, and recruiting. The one thing he'll need to listen to Will on is all the stuff he can't possibly know about being a head coach. Let Will guide him through the snares of being a first time head coach.
As for the OC, well, defensive coaches live and die by who they bring in at OC.