I think he needs to stay a OC. He's really not doing to great at the HC thing.
It's amazing how the play of your QB can either make you a genious, or an offensive moron. (In some cases overnight!)
Case in point: Ken Whisenhut could do no wrong with Kurt Warner at QB for 2 years. Insert Derrick Anderson and Kevin Kolb, and John Skelton and the guy all of a sudden isn't a good head coach?
8-8, 9-7, 10-6, 5-11, 4-7.......kinda speaks for itself. Even when he had Warner and the best WR in the league he could only manage 8 to 10 wins.
I'm not sure if you blame Whisenhunt or the GM for the Kolb trade....but someone should be fired for that nonsense.