Complex sentence: Following his stay in the NFL, Colman coached Freshman Football at his alma mater Ocean City High School, in 2002 he became an assistant coach and teacher for Oakcrest High Schoolbefore becoming head coach at Absegami High School in 2003.
Split into simpler sentences: Following his stay in the NFL, Colman coached freshman football at his alma mater Ocean City High School. In 2002 he became an assistant coach and teacher for Oakcrest High School before becoming head coach at Absegami High School in 2003.