Couple of points regarding this dumb and tired topic:
1. If it wasn't for Dak Prescott, 2016 would have been a repeat of 2015. If it wasn't for Dak Prescott, there would be no season for Romo to even "save" in 2016. The Giants and the Eagles would have long ran off with the division by the time Romo was ready to play. If Dak didn't perform as a historically great rookie, Romo would have blew out his back trying to save a 1-7 Dallas or Romo wouldn't even had tried to come back at all in 2016 because the Cowboys chances would have been next to zero of even getting to the post-season.
All this BS about how Romo deserved his shot to play in the playoffs would be null and void if not for the play of Dak Prescott. Romo, given 2015, would have had to go 8-0 in the last 8 games to even have a SHOT at getting to the post season. And of course would have needed to actual complete more than 3 games in a row without injury.
2. Speaking of 2015...The Dallas Cowboys did EXACTLY what you wanted them to do in 2016...except they did it in 2015. Romo gets injured...Romo gets inserted back into the QB spot...Romo proceeded to throw pick after pick against the Panthers on Thanksgiving...ending up hurting himself AGAIN...the Cowboys lost all but eliminating them from playoff contention.
This fantasy world that you people like to live in where Romo rides in and saves the day...ALREADY HAPPENED. It happened just the season prior...Guess what? It FAILED miserably.
In 2016, the Dallas Cowboys ALREADY HAD their "savior" in Dak...so unless Romo was good to go play CB...the 2016 Cowboys didn't need Romo. The 2015 Cowboys did though. How come Romo couldn't save that season?
MAYBE if Romo showed that he could win the SB in 2015...maybe the Cowboys would have felt better about repeating the same plan in 2016. Instead, if I am Dallas, I am RIGHTFULLY trying something different and riding the horse that ACTUALLY brought me to the dance.
3. Romo had 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, etc. to go win a SB. MAYBE if Romo showed he could even get to a SB in any of the decade prior to 2016, the Cowboys would have felt the need to go to him in again. However, Romo has never shown the ability to go on a SB run...so AGAIN, I am going with the QB that is ACTUALLY the reason why 2016 wasn't a repeat of 2015: Dak Prescott.