Other than the elected offices, each department and office established by the Charter or created by ordinance, and each of the Public Works bureaus of Contract Administration, Engineering, Sanitation, Street Lighting, and Street Services shall have a chief administrative officer. In departments under the control and management of a board of commissioners, the chief administrative officer administers the affairs of the department. In departments and offices not under the control and management of a board of commissioners, the chief administrative officer has full charge and control of all work of the department or office. Elsewhere in the Charter and in the Los Angeles Administrative Code, chief administrative officers may have different position titles including general manager and director.