Dumb or no I think the fallout at San Francisco and the eventual collapse in Detroit (Mooch's fault or no) will prevent him from being a head coach in the NFL anytime soon. I personally think he is best served going to Michigan State for a few years and then coming back to the NFL.
I also don't think that Mooch would want to leave Michigan again or at least in the near future. It's also possible he becomes a talking head for a few years and then comes back to coaching ala Denny Green.
Random Rant: Why can't I make Mike Ditka my defensive coordinator in Madden? He's still alive just not in the NFL. How awesome would that to have Ditka roming the sidelines as your DC or even Head Coach.
Ditka played TE and Buddy Ryan was the DC for those Bears teams. Put Ditka at OC if you do anything.