DeMarco Murray flashes in final exhibition

Cowboys RB DeMarco Murray picked up 32 yards on 10 carries, plus 4 catches for 64 yards in Thursday night's preseason game against the Dolphins.  The rookie flashed big-time burst on a 48-yard screen pass on Dallas' 1st offensive play of the game.  He struggled running between the tackles, though, with 3 of his 10 carries going for 1 yard or less.  Murray looks like a pure pass-catching specialist at this point.  And he won't be stealing many snaps from RB Felix Jones.