Masterson departs after 7 years leading the California theatre toward more new work and community ventures.
Patterson will leave his post as incoming artistic director Joanie Schultz’s first season begins.
One of the theatre’s founding directors, she will take the helm this fall.
Adam Burke and Linda Reynolds will share leadership responsibilities.
Josh Aaseng has been promoted to associate artistic director, and Kayti Barnett-O’Brien has been promoted to managing director.
Mallin leaves her post of ten years to explore new opportunities.
Foster will leave in the fall, and a search for a new managing director will begin in January.
After 30 years, the longtime leader of the 50-year-old theatre will step down.
The new leader previously served at Shakespeare Festival St. Louis.
Jennifer Eve Thorn and Callie Prendiville have stepped into the top artistic roles at the San Diego company.