Complex sentence: Kelley was general manager and head coach of the New England Whalers of the World Hockey Association in the 1972-73 season, winning the Howard Baldwin Trophy as the coach of the year.
Split into simpler sentences: Kelley was general manager and head coach of the New England Whalers of the World Hockey Association. During the 1972-73 season, he won Howard Baldwin Trophy as the coach of the year.