Original sentence: He served as the head coach for the Calgary Stampeders of the Canadian Football League (CFL) for one and a half seasons, and also held assistant coaching positions at several colleges, most notably, the University of Maryland where he helped Jim Tatum coach the Terrapins to the 1953 national championship
Edited sentence: He served as the head coach for the Calgary Stampeders of the Canadian Football League (CFL) for one and a half seasons, and also held assistant coaching positions at several colleges, most notably, the University of Maryland, College Park where he helped Jim Tatum coach the Terrapins to the 1953 national championship