LSU defensive coordinator Bo Pelini is not expected to return in 2021, according to Sports Illustrated's Ross Dellenger.
Alabama.com's Matt Zenitz first reported news of Pelini's expected exit.
Pelini returned to the Tigers' coaching staff in 2020 after serving as the head coach at Youngstown State for the last five seasons
This year, the Tigers' defense is ranked second-to-last in the SEC in total defense, second-to-last in pass defense and is fourth-worst in yards per carry allowed.
Pelini replaced Dave Aranda, who left the school last offseason to become Baylor's head coach.