IMO, not inserting Romo back into the lineup in 2016 when he was fully healthy was the dumbest, most arrogant decision Garrett ever made. It didn't matter how good Prescott was playing. There was no chance that a rookie QB was going to win a Super Bowl, and it wasn't just a matter of how Prescott was playing, it was about respect and how much better the team could be with Romo in the lineup. Prescott was the future and Romo was the now. But just like Jerry, Garrett has to get all the credit and deflect all the blame, and since his new found rookies were playing so well, he could get the shadow of Romo covering for his horrible offensive schemes and coaching ability off of him.
I believe this will be a "karma" decision that will result in the red-headed step child never succeeding and winning anything.