You wouldn’t think that hiring a defensive coordinator would be a big deal for the Tennessee Titans given that they have a former defensive coordinator as the head coach in Mike Vrabel. You would be wrong.
Unlike a lot of coaches (and more like Bill Belichick) Mike Vrabel views himself more as a CEO than some of the other coaches around the league. What I mean by that is that he defers a lot of the play calling to his coordinator only chiming in to push for an aggressive play.
That means that while Mike Vrabel had a hand in developing the playbook in the offseason, it was really Pees who was the mastermind and the play caller on that side of the ball.