The Cowboys are head and shoulders above everyone in their division, so they will be a playoff team for awhile from here on out. The problem is can they beat Seattle/Packers/Cards, who will get better.
They can't run Murray like they are doing, and do need a banger, a guy who can pick up third and two. They also need a burner at receiver. Their D when everyone is healthy is good enought, hmmmm....a stud pass rusher wouldn't hurt.