Disregard that Barkley is bigger, stronger, faster, more athletic, a better special teams player and receiver than Walton, and let's just look at their best games:
Barkley:
Ohio St. - 26-195 yds, 0 TD
Iowa - 21-167 yds, 1 TD
USC - 25-194, 2 TD
Iowa - 28-211, 1 TD
Michigan - 15-108, 2 TD...