work. He could seriously be a potential starter as a RS freshman, if not win it out later on. He'll be prepared for Detmer's system.
I just don't know if the year after Mangum leaves is going to have better QB play than that. No matter who it is, I don't expect the same level of play their first year after a senior leaves. If he stays for his senior year. So I didn't really say it well... What I mostly meant was their potential as a first year starter after him.