I don't think Bret should retire as he still has a couple of good years left in him before he retires and becomes a certainty for the Hall of Fame,And would love one final Superbowl win with the Packers.
Iam sure next year when all those injured players return to the team the story will be totally different and Bret will be back to where he belongs as one of the qb of the season who any tea would be glad to have as their playcaller..