You have seen over the last month or so exactly why Denver was willing to pay him tens of millions of dollars to go play for someone else. And yet you still had people just this past week wondering if they should give him a $30 million a year deal, or if it was going to take $40 million to keep him.
In reality, at this point he's barely worth a tenth of that. He simply physically cannot do the things that made him a top quarterback any longer. And he's never been good enough at the rest of being a QB to make up for his diminishing physical abilities. As Herbstreit pointed out yesterday, he's now at the point in his career where he has two choices when he drops back to pass. Throw the ball to his primary receiver, or dump the ball off to the safety valve. He's never been good at going through his progressions, and now he can't move well enough to give himself the time and space to find the secondary receivers or make plays running the ball himself. He is a shell of the quarterback he used to be.
If he's looking for any more than a few million to be a backup, no thanks.