Robert Karl "Deke" Edler (August 29, 1897 â June 1, 1953) was an American football player and coach. He played for one season for the Cleveland Indians of the National Football League (NFL), in 1923. Edler served as the head football coach at Otterbein CollegeâÂÂnow known as Otterbein UniversityâÂÂfrom 1929 to 1934, compiling a record of 21âÂÂ24âÂÂ4.