Mr. Mike Dempsey is currently the Athletic & Activities Director and the Assistant Principal. He is a 1975 Gross graduate. He received a bachelor's degree from UNO in 1980 and a master's degree in 1983. Mr. Dempsey began his career at Gross in 1980, teaching math as well as assisting coaching football and basketball. In 1986, he left Gross for five years to teach and coach at another Catholic high school in Omaha. Dempsey returned to Gross Catholic in 1992 to become the head basketball coach, teach math, work in the counseling department and assist coaching football. Mr. Dempsey finished another master's degree in administration in the fall of 2008. Mr. and Mrs. Dempsey have four children that have graduated from Gross Catholic.