High Quality Content by WIKIPEDIA articles! Maurice Edward "Mo" Cheeks (born September 8, 1956, in Chicago, Illinois) is a retired American professional basketball player and assistant coach for the Oklahoma City Thunder. He was the head coach of the Philadelphia 76ers of the National Basketball Association from May 23, 2005 to December 13, 2008. Prior to that, he was head coach of the Portland Trail Blazers from the start of the 2001–02 season until March 2, 2005.