He doesn't strike me as the chickenshit type. He's not running from harbaugh. But even if he left, he's more likely to go to South Carolina than Tennessee.
I will say this for Gruden and Kelly. Both are going to demand COMPLETE control of whatever program they are at. As an Eagle fan, it was amazing to see Kelly win a power struggle with our long time General Manager and owner's pet, Howie Roseman. He has promptly ran the team into the ground but he would definitely win championships here. As for Gruden, he may be the biggest control freak out there. Remember the rumor during the last go around? He allegedly carries with him a memorandum that any team he signs with must abide by that gives him absolute power. Is this something you think administration would go for?
Guys - Tennessee will go big. Forget another MAC/C-USA guy. Tennessee demands a former National Championship winner, and Cheek/Hart will deliver. WE gonna get Gene Chizik to get us back to the promised land!