 After his playing career ended, Perranoski was the Dodgers' minor league pitching coordinator (1973–80), then the MLB pitching coach for Los Angeles for 14 seasons (1981–94).He joined the San Francisco Giants as minor league pitching coordinator in 1995, was promoted to bench coach in 1997 and then to pitching coach in 1998-99.He has been a special assistant to general manager Brian Sabean since 2000.