I liked Lee as one of our receivers. He was one of the few reasonably bright spots on a long sad decade of Bills teams.
When we traded him, he was getting close to the end of his career, but likely still had the potential for 1-2 good seasons. MANY people here reasonably questioned why we would make that trade. It sure looked to make us worse in the short run. If you believe (as I do) that Nelson was talking about Lee as one of the position leaders who didn't buy what Gailey was selling, then the answer is clear as to why we traded him.
It doesn't make him a bad person, a bad teammate or a bad player, just the _wrong_ player for this new team being constructed by Nix/Gailey.
To me, this clears up all doubts as to why the trade went down. You want everyone in the boat rowing the same direction as hard as they can.
I like Lee, I miss his great home-run strikes, but it looks clear that it was time to move on.