Martin Hoshino, the policy and budget wonk who has served as the top administrator of California’s judiciary since 2014, announced Tuesday that he will retire on Dec. 31.

Hoshino’s departure coincides with that of Chief Justice Tani Cantil-Sakauye, giving the incoming chief justice, Patricia Guerrero, the opportunity to select the next executive who will oversee the judicial branch’s sprawling bureaucracy. Millicent Tidwell, the Judicial Council’s chief deputy director, will serve as acting administrative director.