I think worst case scenario, the wheels come off after the latest home embarassment and Jim ends up gone after the season.
Best case is that they wipe out the staff, like some have compared to Lovie Smith/Ron Zook. This could be really good or really ugly.
If Jim is willing to hire coaches that he will allow to change things, I think it could be a very successful move.
If Jim takes the Lovie approach and says "well we are changing coaches but they are going to think like I think and they are going to do what I say", I think it is setting up for disaster. Not only are you not changing anything, but who wants to come into a situation for a 1 year shot at the same ol' same ol' especially if the writing is on the wall.