You guys will laugh at this comment. Give Rex one of the best O lines in the game and he can win a ton of games and throw a shit load of TD's. Same can be said about a lot of QB's in this league, but Rex's play is affected much more by the line in front of him then any other QB. Not sure how to describe it. He has more upside and downside depending on the line then other shitty QB's. Quality QB's are less affected by this obviously.
I won't laugh. It's called being a mediocre NFL QB.
Great quarterbacks are defined by the speed in which they read defenses and deliver the ball. Period.
Any mediocre O-line will thrive behind a great QB. Any QB getting paid to be in the league at all will thrive behind a 'great' O-line.
That and a bag of quarters will get your laundry done...