The primary reason I wanted Jim Leonhard as the Green Bay Packers’ new defensive coordinator is due to his portrayal in the book Collision Low Crossers, which covers the 2011 New York Jets, focusing on Rex Ryan, Mike Pettine, Jim Leonhard, and Darrelle Revis. Leonhard, still a safety at the time, is portrayed as the “on-field coach” with a deep understanding of Ryan’s schemes, almost always implementing the right call for the right offensive look. I’m convinced that Jim Leonhard “gets it,” and the University of Wisconsin apparently agrees, as they managed to fend off the Packers to retain him.