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Starter: DeMarco Murray
Primary backup(s): Joseph Randle, Lance Dunbar, Phillip Tanner
Murray has established himself as one of the most violent and intimidating running backs in the NFL.
However, he's also established that he can't stay healthy.
The former Oklahoma Sooner star missed six games in 2012 with a foot injury after his breakout 2011 campaign was cut short when he fractured his ankle.
There's talent behind him, but Dunbar and Tanner have a combined 68 career NFL carries.
Randle, a 2013 draftee, will fight for the primary backup role, yet he's recovering from thumb surgery.
Safe to say, acquiring an established veteran like McGahee would been seen as a shrewd move for Jerry Jones.
Odds: 20 percent