I was racking my brain, trying to figure out where I'd seen new Michigan Defensive Coordinator Greg Mattison before his days with the Baltimore Ravens. I remember him stalking the sidelines for another team at some point. Then it hit me. Years ago, when the head coach of the Texas State Armadillos was ill, his DC, Wally Rig, stepped up and coached the team to a big win behind middle-aged quarterback Paul Blake. Coach Rig must have run into problems with the NCAA so he changed his name to Greg Mattison. Below is a side-by-side from this past year (left) and from his halcyon days at Texas State University (right). Same hair, eyes, nose and jawline, so you know it’s got to be the same dude.