He is just positioning himself to get a decent contract this off-season. Causing trouble now would just be idiotic. He will play the good boy and after he gets a new contract then we will see if he has actually changed or not. Though I will say if Kolb struggles this season I can see them getting rid of him and signing Vick themselves.
Kolb has a lot of guaranteed money. I don't see them dumping him this season for any reason. I think the bet the bank on him.
"Mister, we deal in lead." (Steve McQueen, the Magnificent Seven)