Yes, Gerhart had 60% of all carries, for 2/3 of ALL rushing yards and over 50% of ALL touchdowns.... as a running back.
Crists's success will depend heavily on the offensive line. a bad one will make an inexperienced QB look inept, while a great one can make it much easier to develop because they are not getting the crap beat out of them (see: clausen year 1)
as with most great running teams, it all starts with a great offensive lines. Stanford will return all 5 offensive lineman, are loaded at running back, and will continue to run all over people next year.
look at any NC contending teams, and more times than not they will have studs on the O line and D line.