Keith Butler is in his fourth season as the team’s defensive coordinator, after being promoted to the position on January 13, 2015.  

Butler had previously served as the team’s linebackers coach for 12 seasons (2003-2014). He was originally hired by the Steelers on January 28, 2003, after serving the prior four seasons (1999-2002) as the linebackers’ coach of the Cleveland Browns. Butler remained on the Steelers’ staff following Mike Tomlin’s hiring in January of 2007.