I don't know about starting but they should definitely do a 60-40 split.
Barber definitely closed the game out, but I believe Jones could have broke a few of those runs.
That stat is schewed a bit, since one game Barber was hurt and didnt get a carry in the 4th quarter and another game he only got 8 carries and none in the 4th
Kind of brings the yards down when you take 2 games away