You talk about UGA, but UGA starts with the oline. It's barely exaggerating to say that half of all starting RBs in FBS could be Heisman contenders behind UGA's oline.
Ty'son is physically better than any RB on the BYU roster. Now, perhaps there is something mental there, it's hard to know. But he's still generally made the most of his carries when he's gotten them. He's averaged close to 5 ypc behind a crappy oline in the SEC. That's not bad. Name me any other RB on our roster who could do that.