according to the Brett himself, he decided to retire because he felt that he couldnt top the last year. to start last year, HE didnt even think the team was good enough to get to the playoffs, let alone the NFC championship game. the only way to top that would be to win the super bowl, which he said would be very difficult.
last year was no fluke, just all the no name players making a name for themselves at once.
some people will say that the Pack not signing Randy Moss is what led Favre to retire. that is bogus, he wouldnt base his career on them not signing a guy.
oh and Wahoo, i don't have Pat figured out either, and i KNOW him. :D