no coach is going to interview and claim he "won't work" w/ Clausen. Clausen will be somewhere on the depth chart simply b/c he is young and under contract.
new HCs simply always bring in their own QB to run their new offense. Only exceptions are the few Superbowl QBs that have been inherited in recent NFL history.
on top of history supporting the fact Clausen not being the "future". The kid has done nothing for someone to build an arguement that he would be the exception.
Head Coaches don't sign the players, GMs do. And when a new GM/HC combo come in they almost always change QBs. But we're not getting a new GM...