Greg got sidetracked by the same contract chase that hurt Finley. It didn't screw his hands up like it did to Jermichael, but it did provide a monster distraction.
He was a better receiver than Jones, Nelson or Cobb and could make plays they could not, especially in the middle of the field. But he wanted a Fitzgerald/Vicent Jackson contract to cap his career after the friendlier deal he took in his second contract. When it started to fall apart, the whole family came unglued.