As of right now
MBIII is better suited for our offense for one simple fact. JJ isn't fully recovered from his injury. At the speed JJ runs, its no different than BArbers top end speed, but Barber can cut at full speed unlike JJ. JJ will be fine once he is allowed to rest his injury, but as of right now, Barber needs the bulk load of the work. Sprinkle in a taste of JJ every now and then, but even Barber is better hands down than JJ in the passing game. So, its not so obvious, but JJ will continue to start to to keep defenses honest, but I truly expect Barber to get much of the playing time.
Game Quitters - Cowboys team mentality - "Toughness is mental first, and physical second, an offshoot of the mental."