Complex sentence: McEwen was the first coach of the Oklahoma City Blazers, whom he coached to three consecutive playoff appearances in 1992-93,1993--94, and 1994--95.
Split into simpler sentences: McEwen was the first coach of the Oklahoma City Blazers. He coached the Oklahoma City Blazers to three consecutive playoff appearances in 1992-93,1993--94, and 1994--95.