Statement from Steelers President Art Rooney II on Keith Butler:
I want to thank Keith Butler for everything he has done for the Steelers since he was hired in 2003. He was a major contributor to some of our top defenses in the NFL during his coaching career. He helped us win two Super Bowls during his tenure, and he guided many All-Pro and Pro Bowl players as both our linebackers coach and then defensive coordinator.
I wish he and his family all the best in his retirement.