The fact there there is a debate is enough to know its time to walk away. In two seasons, did he get even slightly better after his years as a backup? Those that want to interject their hatred of Ryan into the argument to imply he didn't coach him properly fail to remember, Ryan didn't make inaccurate throws not even get the ball to open receivers. That's on TT. A player in any system has to execute, this is an execution league and QB is the most important execution position. TT has many issues that Benoit pointed and that many former TT supports now include on their lists of reasons TT is not the guy.
I think the debate comes down to one word: mediocre, followed by one crippling question at OBD: "Do we risk drafting a project from this class or roll the dice with Cardale Jones and potentially go backwards or do we accept the limits of mediocrity and stick with TT and potentially sneak into the playoffs and play one game, assuming all else improves?"
This is the same question for fans. It's a monster financial risk to keep him around knowing he's hit the ceiling, hard.
I think the powers at OBD know this is a mediocre QB who absolutely cannot win you a game by himself like, uh, that guy from NE did last week completing 27 of his final 33 to take over and win the SB.
If you honestly think this is a SB caliber QB, I don't have much to offer. Seeing all the younger QBs in this league and the guy who seems to not be dropping off in NE, are you willing to keep Taylor as your ticket to an AFC Championship with the old gaurd SB winners still around (Brady, Roethlisberger, Flacco); young and up-and-comers in the way (Luck, Carr, Mariota) and the perpetually underwhelming playoff threats (Rivers, Dalton, Smith)?