The Packers say they have hired Mike McCarthy as their head coach in a three-year deal.
General manager Ted Thompson made the announcement at a news conference Thursday in Green Bay at Lambeau Field.
Thompson said he was looking for someone who could return the Packers to a championship level and he believed McCarthy was the man for the job.
McCarthy spent last season as the San Francisco 49ers' offensive coordinator and was the Packers' quarterbacks coach in 1999.
Brett Favre struggled in his only year with McCarthy, throwing 23 interceptions to 22 touchdowns as the team went eight-and-eight.
But Favre played much of the season with a sprained thumb on his throwing hand.
Favre has not committed to playing next season, and has hinted that the team's offseason moves would play a role in his decision.
In McCarthy's year in San Francisco, the Niners finished with four losses and 12 wins, ranking last in the league in yards per game and 30th in scoring.
McCarthy takes over from Mike Sherman, who was fired by Thompson earlier this month.