From Roto:
ESPN Dallas expects Lance Dunbar to start Thursday's game against the Redskins if Felix Jones (knee) is inactive.
Jones aggravated his knee issue against the Browns last week, missed practice Tuesday and could be headed for a game-time call. Dunbar has been dealing with some knee woes of his own, but he appears to be slightly ahead of Phillip Tanner. They split the first-team reps in practice Tuesday, hinting at a timeshare. It's a situation to avoid if Felix sits. Nov 21 - 8:33 AM
Source: ESPN Dallas