Complex sentence: Edward "Ed" Gayeski was a longtime coach of the Northwest Rangers basketball team, whom in his career had the most wins among all coaches in Pennsylvania, totaling 744 wins and 195 losses (.792 PCT).
Split into simpler sentences: Edward "Ed" Gayeski was a long-time coach of the Northwest Rangers basketball team. In his career, he had the most wins among all coaches in Pennsylvania, totaling 744 wins and 195 losses (.792 PCT).