I do not like Tyrod as a player. I think he is severely limited in his passing ability, doesn't settle in the pocket and is way too tentative in throwing the ball.
That said, he is the best option we have on the roster right now. Peterman, a rookie who looked "ok" against 2nd team, 3rd team and fodder players in the preseason is not going to fare well.Some want to say...well Dak did it...but really it's no true comparison. Dak DOMINATED those low roster players whereas Peterman just looked "ok".
If we had a back up that had some experience I would fully endorse a switch. But putting a green rookie behind that line, with those receivers, with the running game getting stuffed and the play calling being iffy at best is a quick way to not win again this year.