Their one back actually had like a 6.5 yards/rush average if I recall correctly. That's more than nothing in my book.
Mike Davis (SC) had 3.6 yds/per carry average. 160 carries for 570 yds
Foster had 4.4 yds/per carry, with 131 carries for 571 yds
Creer also had 5.3 yds/per carry, 73 carries for 388 yds.