Complex sentence: Paul Hackett (born July 5,1947 in Burlington, Vermont) is an American football coach who served both as the University of Pittsburgh and University of Southern California's head football coach during the 1990s.
Split into simpler sentences: Paul Hackett (born July 5,1947 in Burlington, Vermont) is an American football coach. He served as head coach of University of Pittsburgh and University of Southern California during the 1990s.