In January 1967, Richman became the first general manager of the newly formed National Basketball Association team Seattle SuperSonics. Richman stepped down as the SuperSonics general manager in May 1968 and was replaced by Dick Vertlieb. He continued working with the basketball team as a consultant after leaving his executive position. After leaving the SuperSonics, Richman moved from sports to join a Los Angeles advertising company owned by Chuck Blore. Richman had worked with Blore's company earlier in his career when he was a screenwriter during the early 1960s. Outside of radio, Richman sang with television writer Mal Sharpe as one half of The Brothers Sincere in the late 1960s.
