Complex sentence: The following year after his retirement as professional hockey player he assumed the responsibilities of head coach and general manager of the WHL team the Moose Jaw Warriors and stayed with them from the 1993-94 to the 1997-98 seaons.
Split into simpler sentences: The following year after his retirement as professional hockey player Al took the posts of head coach and general manager of the WHL's Moose Jaw Warriors. He stayed with The Moose Jaw Warriors from the 1993-94 to the 1997-98 seaons.