Wisconsin fired offensive coordinator Phil Longo on Sunday, a day after the Badgers' 16-13 home loss to No. 1 Oregon.
In a statement, Badgers coach Luke Fickell thanked Longo for his two seasons with the program, while adding, "We are not where we need to be and believe this decision is in the best interest of the team."
Wisconsin ranks 97th nationally in scoring and 102nd in passing while operating an Air Raid-style offense that Longo brought with him from North Carolina and other stops.
The Badgers, who lost starting quarterback Tyler Van Dyke to a season-ending injury Sept. 14, had only three points and 88 yards in the second half against Oregon, which rallied from a 13-6 deficit entering the fourth quarter.
Wisconsin ranked 101st nationally in scoring in Longo's 23 games as coordinator and failed to eclipse 13 points on its current three-game losing streak. Quarterback Braedyn Locke had only 96 passing yards against the Ducks.
Fickell did not immediately announce an interim coordinator for Wisconsin's final regular-season games against Nebraska and Minnesota.
Fickell had long targeted Longo for a coordinator role, going back to his time as Cincinnati's coach. Longo, 56, oversaw productive offenses at Ole Miss, North Carolina, Sam Houston State and other spots but never consistently got traction at a Wisconsin program that had operated dramatically differently on offense before his arrival.
"This team still has a lot in front of us and I am committed to doing everything we can to close out this season with success," Fickell said in his statement.