Question: Raymond Albert Patterson, Jr., was general manager of the NBA's Houston Rockets from 1972 to which year, among his most notable player acquisitions was Hakeem Abdul Olajuwon, a Nigerian-American former professional basketball player?
Sentence (from "Ray Patterson (basketball)"): He was named NBA Executive of the Year in 1977, and his Rockets appeared in the NBA Finals in 1981 and 1986.
Relevant evidence: No