Here's a very interesting post from The Hawkeye Lounge that may give some insight as to what's going on behind the scenes at Michigan right now with Lloyd and Mary Sue pushing for Ferentz and the rest of the planet pushing for Les Miles. This guy also says that Carr was diagnosed with Parkinson's in 2001 and has been planning his retirement for quite some time.
http://www.ndnation.com/boards/showp...=470862;d=this