 Since retiring from active officiating, Gierke continues to work for the NFL as a Game Observer and College Scout.He also founded the "Alliance To Promote Football Officiating" in 2000 where he continues to assist and train high school and college officials to advance to the next level.Gierke was the head linesman in the 1993 AFC Wild Card playoff game between the Houston Oilers and Buffalo Bills which would later become known in NFL lore as "The Comeback".