Frank taught social studies and served as the Department Chairman during his years at Chagrin Falls High School. During this time he served as the varsity girls basketball head coach and varsity boys golf coach. His teams won a state championship in 1998 and runner-up finish in 1997. Over a period of 23 years, his teams at Chagrin Falls and Vermillion won 348 games. Frank was twice selected the State Coach of the Year in basketball, was a National Coach of the Year finalist and is a member of the Ohio High School Basketball Coaches Association Hall of Fame. In golf, he has coached the boys to multiple top-ten finishes at the state tournament.