Murray looks like he's on the way out now.
If he's gone, the Cowboys need to add someone who can take the lead role in the RB rotation.
What I dislike about the RB situation --
I simply don't get the Cowboys' fascination with Dunbar.
He doesn't get (or merit) enough touches to be a difference maker. He's not big enough to be a true backup and they can't run their regular offense with him. He may add a small new wrinkle to the offense, but in the big picture, that wrinkle isn't of consequence. Roster spots matter and I don't see how Dunbar adds enough value to justify his, especially if the Cowboys now have a big question mark about their lead back.
IMO, the team is better off having three (or four) potential all purpose backs. Why burn one of your RB roster spots on a special purpose back who doesn't add much value?