Favre's stay lasted about five months, but left so much wreckage strewn in its wake.
Jets general manager Mike Tannenbaum's daring Aug. 6 trade not only set them back, but also made an AFC East rival more competitive.
Here are some of the consequences of the decision to bring Favre aboard:
Favre led the NFL with 22 interceptions and had a 79.3 second-half passer rating.
He threw two touchdowns and nine interceptions in the final five games. The Jets were 1-4 in those games and needed a miracle defensive play to beat the Buffalo Bills.
The Jets released Chad Pennington to make room for Favre. Pennington led the Dolphins to the AFC East championship after a 1-15 season in 2007. The Dolphins beat the Jets at the Meadowlands to clinch.
The Jets' late-season collapse cost several people their jobs. They fired Eric Mangini the day after the season finale. Mangini landed with the Cleveland Browns.
Adhering to superstition, Mangini in October named his newborn son after Favre. Maybe Wite-Out has been applied to the birth certificate.
Favre learned he suffered a torn biceps during the season and was playing hurt.
Favre created tension in the Jets' locker room. Running back Thomas Jones publicly said Favre should have been benched for his poor play late in the season. Safety Kerry Rhodes noted he would like Favre to come back only if he committed himself in the offseason.
The Jets lost a third-round draft pick in the trade with the Green Bay Packers.
Now it's over. Or is it?
Favre's presence will resonate into 2009 because of the massive changes it created. Tannenbaum, who made several positive moves, kept his job. But the Jets have a new coaching staff that may or may not work out, and a team that invested so much money into making the playoffs last year has to find another quarterback.