B.B. Hemingway said:
Marlon Lucky.
He gets lost in the shuffle because he was a Callahan guy, and three of the guys that followed him (Helu, Burkhead, and Abdullah) were three of the best in program history. The guy was pretty darn productive w/ 2400 rushing yards, and 1400 more receiving. 26 TDs.
Edit: To give you an idea of how close he was in production to the three I mentioned (Ameer was in a class of his own):
Abdullah - 5278 scrimmage yds - 46 TDs
Burkhead - 3836 scrimmage yds - 35 TDs
Helu Jr. - 3905 scrimmage yds - 28 TDs
Lucky - 3772 scrimmage yds - 26 TDs