I'm sorry, I don't get the Alexander hate. Lynch does only seldom tear off big runs. He's usually a smash-the-pile-forward-for-nine-yards kind of guy. It's what he does, and that kind of running just doesn't rack up the huge yardage games. The most yards per game he racked up all last year, even while "carrying the weight" because of Wilson's learning curve was 128. His career high for a game is 158, his rookie year. He had two straight seasons where he didn't break 100 yards. He's a great back, but he gets consistent, low-yardage carries based on his style.
I have the feeling many posters here hopped aboard in 2007 the way they talk about Alexander. His running style may be criticized for being "soft," but remember that awesome streak of games where he maintained at least one 10+ yard rush every single game? As I recall, that number is in the high sixties or low seventies and is an NFL record. He consistently had plays that broke long, and that was fun to watch. It's also the reason he has so many yards rushing.
I think it's a pretty steep bet Lynch ends up #2 all-time Seahawks rusher. That's a lot of yards. Last year was his best year by far at 1,580. He can do it, and I hope like hell he will, but it'll be tough.
