The decision, which got rid of the reserve clause that bound players to teams unless their contracts expired or they were traded or released, led to free agency in baseball.
Moss successfully argued that MLB's reserve clause, which had historically bound players to their teams indefinitely, should only allow for a one-year renewal.
[3] Following this success, Moss transitioned to a career as a sports agent, representing notable players such as Nolan Ryan, Fernando Valenzuela, and Gary Carter.
He negotiated some of the largest contracts in baseball at the time, including Nolan Ryan's record-breaking $4.5 million deal with the Houston Astros in 1979.
Moss spent much of his later life in the Los Angeles area, where he was involved in various philanthropic efforts, including serving on the board of a chapter of the NAACP.