Bobby Jones (basketball, born 1951)

Bobby Jones made the NBA's All-Defensive first team eight straight seasons from 1977 as a lean forward with Denver and Philadelphia, quick enough to stay with wings and long enough to bother post players. He was the sixth man on the 1983 champion 76ers. In an era of fixed matchups, he was the rare forward coaches moved around by opponent, which makes him the template for later switch defenders.