Unless otherwise provided by this Charter, the Director of each department shall be the Manager. Unless otherwise provided by this Charter, the head of each division shall be a part-time or full-time Division Head, appointed by the City Manager and approved by a majority vote of Council, who shall exercise division supervision and control subject to the direction of the Manager. Two (2) or more divisions may be headed by the same person, and the Manager, with approval of Council, may serve as the division head of one (1) or more divisions. Each division head shall be an administrative officer of the City.