That dude bounces off of people left and right.
Luke didn't have many opportunities to bounce off of people, because he'd get the ball on the edge and just be gone. No one could catch him.
Early in his career, Luke didn't get too many opportunities to run up the middle in short yardage situations - I forget who, but there was another freshman back (Tahi, if I remember correctly?) who was bigger and got most of those carries his freshman year.