The Green Bay Packers won't retain Mike Pettine as defensive coordinator.

Matt LaFleur retained Pettine from the previous Packers' coaching staff. He was with the team for the past three seasons.

Green Bay ranked ninth in overall defense in 2020.

Pettine, 54, never signed a contract extension that was offered to him after last season, meaning he was in the final year of his deal, according to a source.