You are giving a lot credit to a guy who had 3 ok runs and otherwise 1.7 ypc
He had 3 carries that went for 33 yards and those came on 3 of his first 7 carries. After that, he had 18 carries for 31 yards, including 7 carries that went for 2 yards or less (not counting 2 1-yarders that went for TDs).