I know i've written too many words on this subject already, but here's one more point about RW:
For a guy so hung up about his "legacy," Russ has really gone about it in the worst way possible. One of the most important ways to burnish your legacy is to have an adoring fan base. The way Chicago fans revere Walter Payton, or the 49ers fans think of Joe Montana. Without the support of Seattle fans, Edgar Martinez is probably not in the Hall of Fame. (What a contrast between those two--Edgar loved his adopted city, never left, and has a street named after him. Pretty sure Russ will not a Seattle street named after him.)
What will it mean to his legacy to have an entire city pissed at him? Will they eventually forgive and forget? Possible, but it's hard to tell. Even if Seahawk fans forgive, he'll never be loved or appreciated like he was before he left. I suppose he'll be loved in Denver if he can win a couple of Super Bowls for them, but it's tough when the expectations are so high. If you win, they'll just think that's what a hired gun is supposed to do.
More likely, the narrative in Denver will be that he's too expensive, even if he is a top-ten QB. And if they don't win, then it will be a lot worse.
It's hard to see how this all plays out. I can't think of another player who has done this kind of thing--so quickly and completely alientated an adoring fan base. There have been plenty of players who have left teams more gracefully, but in most cases, the players were forced out. If Russ was a borderline HOF candidate, I think he's definitely not getting in when even his fan base is saying, he wasn't responsible for our success.