Marion Barber is known as The Barbarian because of his brutish running style. With 31 rushing touchdowns over the last three seasons, Barber has earned the bulk of the work when the Cowboys can sniff the end zone.
But don't rule out Jones getting involved occasionally in the red zone, too.
"We love Marion down in the red zone," offensive coordinator Jason Garrett said. "He's got a great track record. But obviously Felix can run down there as well. He's proven that he can do that. He's proven that he can run between the tackles."