Does anyone understand the methodology in how Julius Jones and Marion Barber are being used on offense? Conclusions I drew from watching the game last night:- They did not rotate within a series (The guy who started a series stayed in the whole series)- They do not necessarily alternate series (Sometimes it is JJ for back to back series. Other times MB3)- MB3 was the recipient of pass receptions late in the 4th quarter (4th quarter back, clincher back, passing downs back???) It just seems like a coin flip by the coaching staff on which is going to play RB for any given series. I think the general concensus is that MB3 seems to be the better overall back. However, I just do not understand the methodology or rationale used by Dallas in who plays, when, and how much? Anyone else have any observations?