The Chicago Bears announced Tuesday they have reached an agreement with Clint Hurtt to become the club’s outside linebackers coach.

Hurtt served the 2014 season on former head coach Marc Trestman’s staff as the team’s defensive line coach.

The Bears also announced offensive quality control coaches Brendan Nugent and Carson Walch won’t be returning for the 2015 season.

Under Hurtt’s direction in 2014, the Bears increased their sacks from 31 in 2013 to 39 with 35 of the club’s sacks coming from the defensive line.

Chicago’s designation of Hurtt as outside linebackers coach signifies the Bears could be moving to a 3-4 front under new defensive coordinator Vic Fangio, whose background is rooted in the scheme.

With Hurtt leading the defensive line in 2014, defensive end Willie Young led the Bears with a career-high 10 sacks, after posting six over the previous four years with the Detroit Lions. Young became the second player in Bears history to post double-digit sacks in his first year with the team since 1982, when sacks became an official statistic. Hurtt also played a role in Jeremiah Ratliff ranking eighth among defensive tackles in sacks (6.5). Stephen Paea chipped in a career-high six sacks.

Before becoming Chicago’s defensive line coach in 2014, Hurtt worked 13 years coaching in college. Hurtt served from 2010-13 as Louisville’s defensive line coach/recruiting coordinator. Hurtt joined Louisville from his second stint at Miami, where he worked as the defensive line coach from 2006-09. Hurtt started his coaching career at Miami as a volunteer strength and conditioning coach from 2001-02, before working as a graduate assistant with the team from 2003-04.

Hurtt worked the 2005 season at Florida International University as defensive line coach.