Well I was addressing Lynch's departure from Buffalo.
While you bring up some good case studies in supporting the idea that the Bills should have kept him, I still think Lynch had to go. He was not the player Bruce or Thurman were and in fact, Lynch is a one-trick pony. He's a power back. Very one-dimensional, IMO. Also his off-the-field problems were worse than Bruce or Thurman's.
As far as the decision to draft Spiller, I think he's the best player on the Bills so I can't bring myself to view drafting him as a mistake.
At the time, the only other player on the board who had his credentials as a talent was Dez Bryant who had a lot of concerns.
I wanted the Bills to draft Brandon Graham at the time. JPP has turned out well but no one thought it would be a good idea to draft him at #10.
Spiller was the best player at the time and offered the Bills some elements (home run hitter, return man, slot receiver) that Lynch couldn't provide.
Now if you made the case that drafting Lynch was a bad decision I could agree with that.