Complex sentence: In 1939, two years after his graduation from Fordham University, Vince Lombardi began his football coaching career at St. Cecilia; he worked there for several years before leaving to take a junior coaching staff position at Fordham, his alma mater.
Split into simpler sentences: In 1939, two years after his graduation from Fordham University, Vince Lombardi began his football coaching career at St. Cecilia. He worked there for several years before leaving to take a junior coaching staff position at Fordham, his alma mater.