Maybe Angeli can do it. Maybe not. I think odds are quite strong that Buchner would win a QB competition restricted to players on the current roster. I also think there is the prospect of him missing some time next year for an injury . I could be wrong and I hope I am, but that is his track record. So, we need someone who can step in and play at a high level. I think Pyne does his best and does contribute some to our success, but we need a higher level QB2 because that guy very possibly may be starting at some point. I think Drew Pyne still holds a lot of value as an emergency QB in that most teams don't have a #3 guy that can step in with tons of experience. I think he'd been an excellent leader in that room as well.
So, if Buchner/Angeli is a good enough combination to take care of the starting role and playing time and you have Pyne that you know can step in with experience at any time if something were to happen to both of them, I'm not sure you need a transfer. However, if Angeli is not capable of being a good to very good FBS starter then you almost need to bring in a transfer to compete with Buchner.