I can see both sides of the argument.
Romo side -Tony should be put back in, he's the vet, better arm talent, knows the O like the back of his hand...
Dak side - Great poise for a rookie, rattled off a bunch of wins, better legs, got us to the play-offs and Romo had his chances, maybe this kid can do it.
Funny thing - you can almost run the same scenario if Dak got hurt in the pre-season and we had a rookie come in and did what Dak did his rookie year.
Would you wanna go with the vet Dak, who has had his chances or do you go with the new blood.