Do I think Hoke would take any job if enough money was thrown at him? Sure.
I don't. He's wanted to be at Michigan for years, said it was his dream job, and has been rather vocal about that.

Note I also didn't name my own coach. Therefore is he dirty? I note that was the only possibility you questioned.
Dirty, no.
Evidence suggests other things though. :p

Don't get too upset about it, I was mainly commenting to see if you'd thought through the major programs as you implied.