The administrative officers of the City shall consist of the Clerk, Treasurer, Assessor, Attorney, Police Chief, Fire Chief, Superintendent of Public Works, Superintendent of Waste Water Treatment and such other officers as shall be so designated by the City Council. All administrative officers, other than the Attorney, are responsible to the City Manager for the effective administration of their respective departments and offices, and all activities assigned to them. The City Manager may set aside any action taken by any administrative officer and may supersede him or her in the functions of his or her office, but, as to officers appointed by the City Council, such action shall be subject to approval by the Council.