Complex sentence: From 1977 through to 1983, Adelman coached at Chemeketa Community College in Salem, Oregon, after which he was hired by the Portland Trail Blazers (then coached by Jack Ramsay) as an assistant.
Split into simpler sentences: From 1977 through to 1983, Adelman coached at Chemeketa Community College in Salem, Oregon. He was then was hired by the Portland Trail Blazers (then coached by Jack Ramsay) as an assistant.