I agree that Wade Wilson, along with his BOSS, Jason Garrett, a former QB and QB Coach himself, should take blame for Romo's regression. In Fact, we see a pattern now with Wilson, and that is that all the QBs he has worked with, to change their mechanics, have all took a step backwards. Guys before Romo were so sub-par that a small step backwards spelled their doom. Romo has a better chance of survival simply because of his talent.
Maybe Romo has another life in him, but we do need a better QB coach coaching him, and a better teacher overseeing the teacher. That's because this year Romo became determined to mechanically become more of a pocket passer, playing away from his strengths of "creating" from outside the pocket, and aa a result he was poor in both areas. Even early in the season you could see it. Now I think Romo still has a chance, but the NFL has a way of shutting your window fast if you don't wedge it open. With his skills, Romo is too valuable to keep deferring his skills to the current sub-par coachng he's receiving.