I am all for giving him a shot. Anyone in the room is better than AM, and have been saying it for years.
The word is that he is really well liked by the staff (what is left of them) and the only knock I have is his passing.
I have seen some passes that scare the heck out of me, but I remember that Taylor Martinez wasn't really allowed to pass over the middle either. I wish he was a bit taller too, but there are a lot of things we haven't seen from him, including his running ability which is supposed to be scary good.
I'd welcome someone who has a competitive leadership style over the current starter. From the small data points we have as fans, I'm inclined to believe that trait falls heavily on Haarberg, but let's not kid ourselves... Frost is going to play AM and there is nothing we can do about it.