Depends on who's better.
The problem with Romo is that it's very uncertain he can play as well as Dak is playing right now when Romo comes back from injury. He hasn't played much football in the past year and he's getting older and has added new injuries to the fold.
To me, where Dak and Romo excel is in the intermediate throws, but Romo is more efficient in the long throws and Dak is more efficient in the short throws. Dak's gone 5 games without a pick and has 1 fumble. Something Romo has never come remotely close to doing. And Dak really helps the running game.
With Peterson, there's a good chance he can come back healthy and outplay McKinnon. Bridgewater? I'm not so sure as I've never been overly impressed with him and I always thought Bradford had potential.
But with Dak, the O-Line and EE, it's making life very difficult for defenses and just to think, EE is still learning how to run in a zone scheme.
YR