Personally, I think Garrett got caught up in the hoopla over Dallas having 3 pretty decent RBs and the idea that we need to get all 3 involved...that's a load of crap.
If you have a horse, you ride him...it's hard to make a good running back share time with one back, much less trying to get all 3 involved. What happens is you start slotting them into personel packages and certain plays...next thing you know you don't have a single back getting into a groove or rhythm.
I love Choice...I really do...but honestly, I think we need to hand MBIII the rock at least 20 times per game if he's healthy...we need to grind on other teams and bring Felix in for another 10+ carries or touches of some sort for the big play ability.
Choice needs to ride the pine and be ready to replace either guy if injured or underperforming. If you think he's better than MBIII, then sit MBIII and give Choice the rock 15+ times.
Just stop trying to be cute and get all 3 guys carries...pick and guy and run the plays he runs well, and let the OL get in a groove. The RB and OL need to have a chemistry just like other OLmen have to have chemistry with each other.