Career
He has previously been a coach at Western Illinois, Eastern Michigan, Central Michigan, Virginia, Cincinnati, and Notre Dame. He played college football at Iowa. In December 2013, Diaco agreed to become the head coach at the University of Connecticut, and was replaced at Notre Dame by Brian VanGorder.
He already had been a semi-finalist in 2011.
He played college football at the University of Iowa, under head coach Hayden Fry, who described Diaco as "extremely tough, very intelligent". He was a two-time All-Big Ten selection as a linebacker and was named the team’s co-Most Valuable Player in 1995, starting in all 23 games over his junior and senior seasons.
Diaco was teammates with Mike Devlin, Scott Slutzker, Danan Hughes, and Mike Wells.