Career
While at Jamestown, he ammased 83 conference championships among the several sports he coached. Greeno was inducted into the National Association of Intercollegiate Athletics National Football Coaches Hall of Fame. Football
Other sports
Greeno also coached cross country running, wrestling, and track and field
He finished his career by winning the final 22 NDCAC outdoor titles, along with the first Dakota Athletic Conference outdoor crown.
Greeno has been credited with sustaining Jamestown College through his efforts in the athletic program When he started at the program, almost one-third of the enrollment at the school was made up of athletes he brought in to the program
