Complex sentence: Charles Joseph "Charlie" Weis (born March 30,1956) is an American football coach who most recently was the head coach at Kansas, a position he assumed in December 2011.
Split into simpler sentences: Charles Joseph "Charlie" Weis (born March 30,1956) is an American football coach who most recently was the head coach at Kansas. He was previously the head football coach at the University of Kansas, a position he assumed in December 2011.