Derek Day ('09) serves the Butler Football program in the role of linebackers coach and recruiting coordinator. He returned to his alma mater in April of 2017.
Day returns to Indianapolis after spending two years as defensive quality control and assistant linebackers coach for the University of Tennessee. During his time on staff, the Volunteers notched championship wins at the 2016 Music City Bowl and 2015 Outback Bowl. At Tennessee, Day coached Second Team All-SEC Linebacker Jalen Reeves-Maybin and Freshman All-SEC Linebacker Darrin Kirkland Jr.
Day graduated from Butler after starting all four years at defensive end. He helped the program reach its first winning season in over a decade before taking graduate assistant coaching stints at Western Kentucky and Iowa State.