AFAIK, Warner retired at the end of last season, gracefully, no tears,
Farve had become more a sideshow and distraction in his indecision than the Packers had patience for. They had another top QB waiting in the wings and decided to go that direction.
Farve is a great QB, and possibly the best all around player the game has seen.
But he needs to go away, with dignity, before he gets hurt.