Cowboys beat writer Todd Archer expects Marion Barber to be an "every-down back" despite the team's addition of Felix Jones

Archer doesn't think Barber will get 300 carries, but 300 touches is doable because he'll catch a lot of balls. Jones is expected to get 10-12 touches per game as a change of pace. Barber will get every goal-line carry imaginable.
Source: Dallas Morning News