With Marion Barber, Felix Jones and Roy Williams all banged up the bye comes at the right week.  Barber has a nagging quad injury that just won’t seem to go away.  He still leads the Cowboys in rushing with 297 yards on 58 carries (5.1 ypc) and he has caught 4 passes for 58 yards (14.5 avg) this season.  The Cowboys need Barber because of the power he brings to the running game.  Jones is a flat out speedster who can go the distance any time he touches the football.  He has carried the ball 21 times for 212 yards (10.1 ypc) with 1 TD run this season.  WR Roy Williams needs to get back into action or Miles Austin might just steal his job.  He has caught 11 passes for 214 yards (19.5 avg) so far this season with 1 TD grab.  The Cowboys will be more potent when they get all of these guys back healthy.