Of course he is the best back up. He holds multiple franchise records with the bengals passing two quarterbacks who had made the super bowl in boomer and Kenny Anderson, Also there was Carson Palmer. He lead the bengals to 5 consecutive playoff runs his first 5 years in the league. His rookie year when he was drafted every expert said the bengals wouldn’t win more than 3-4 games. He has a lot of come back wins and everyone wants to say how bad his last 3 years were. Well without playmakers and a good healthy o line it’s kind of hard to do. Look at his first 5 years in the league when he had a good o line and good players around him. Not to mention his experience and knowledge of the game being a groomed veteran. Imagine what he could do with the cowboys. I really would let dad walk and give Andy a deal for 4 years. It would be much cheaper and in my opinion more valuable overall to the team. Dak looks better than he really is because of Zek and his o line!!!!