As a former quarterback, Jim Harbaugh has been known more for his offensive mind throughout his tenure as a head coach at the University of San Diego, Stanford, and the San Francisco 49ers. Yet his teams have always featured excellent defenses, and although he's in just his first year running the program in Ann Arbor, his unit is already playing at a high level on that side of the ball.
After taking over a group that had performed well under the tutelage of former coordinator Greg Mattison, Harbaugh kept Mattison on as defensive line coach while adding former Florida coordinator D.