Keith Butler is the reason he was retain as Defensive Coordinator for the Pittsburgh Steelers in 2019. He got a few good NFL Draft picks in 2019 in Nashville. Got LB Devin Bush Jr from the Michigan Wolverines in the 1st Rd. Got a good CB from the Michigan State Spartans in the 3rd Rd Justin Layne. Also got LB Sutton Smith from Northern Illinois in the 6th Rd. Defense is going to be much better as well too. Keith is got a good core to work with now. Pittsburgh Steelers is going to have a good Defense in the NFL again. Top 5 Defense in the NFL. Mike Tomlin made the smart decision to retain him for now on. They had injuries in the 2018 campaign. This unit is going to be a special again. Devin Bush Jr is the right one to have on the squad to guide the Defense to be Elite One again. Ryan Shazier has been injured. It cost us games. Steel Curtain Defense Is Going To Be Back Now.