And he had 80 carries in a backup role. I like Turner, but lets not twist stats to prove a point.
Ok Jamal had 314 carries to get 1132 yards.

Michael Turner only needed 80 carries to get 502 yards.

Jamal had 3 carries of 20+ yards
Turner had 7 carries of 20+ yards

Jamals longest carry was 52 yards
Michaels longest carry was 73

Jamal had 234 more carries. Don't you think thats more then enough carries to get more then 3 20+ yard runs?