As good as Mangum has been, Hill is a whole different level. He is the best athlete on any field that he steps foot on. It wouldn't be the worst thing in the world for Mangum to sit behind Hill for 1 year and learn the offense better, and learn from Taysom. Look at the NFL, not always is it a good thing for QB's to get thrown in from day 1. A lot of times it is very beneficial for the player to sit for a while behind a stud QB and learn from them before taking over.