Andersen, the Badgers' coach for two seasons, informed the team of his decision Wednesday afternoon, the school said.
Wisconsin (10-3) is scheduled to play in the
Andersen replaces Mike Riley, who left the Pac-12's Beavers to accept the head coaching job at
Andersen thanked Wisconsin in a prepared statement.
"We worked very hard together and accomplished some great things. I had the opportunity to meet and coach some great young men and I look forward to watching them as they continue their careers and move through life," he said.
The Badgers had an inconsistent season, losing two of their first five games but recovering to win seven straight. But the season ended with a thud when the team was blown out by
Azusa Pacific running back Terrell Watson headlines this season's American Football Coaches Assn. Division II Coaches' All-America team.
Watson was the leading rusher in Division II this season with 2,153 yards in 319 carries. He scored 29 rushing touchdowns, which also leads the nation. Watson's 195.7 yards per game also led all Division II players.