But Favre feels that Romo should wait until Prescott struggles before getting back in the lineup.
"You have to look at the dynamics right now and they really are hitting on all cylinders," Favre said on his SiriusXM NFL Radio on Tuesday.
"So, this is hypothetically thinking, if you are Tony you say, ‘You know what, as much as I want to play, I don’t want to press the issue. I want to play, but I’m going to let it play out right now and it is probably better if Dak starts struggling and then they bring me in rather than they put me in and then all of a sudden we’re not hitting on all cylinders and everyone’s like, ‘Ah, they should have got rid of Tony, blah, blah.' You know what I mean?
"I’m not saying that you tell [Jason] Garrett or Jerry Jones, ‘Look, I don’t want to play.’ I think, you want to play but, look, I don’t want to mess up the dynamics of the team. If we get to a point where we’re struggling then it is time for me to come in. Now, I know that’s a hard thing to do. … I just think you are better if you wait ‘til you are really needed. And I mean no disrespect whatsoever to Tony.”