I don't think you're going to find a coach that wants to put his career in the hands of a 5th round pick that threw 4 touchdowns and 5 interceptions in 7 games last year. We're either going with a vet (likely Carr), drafting a QB high, or both.
But if we were looking for a coach that may do it I would say Kingsbury would be most likely. I don't think we're waiting on him though. I think we're hiring McCarthy or Glenn this week. And I think both will want to go with Carr.