All appointive offices, boards, commissions, or other positions in the Municipality prior to the adoption of this Charter, shall be abolished on the first day of December, 1969. After that date, there shall exist only such offices, boards, commissions, or positions as are provided for in this Charter or as are established by ordinance not inconsistent with this Charter; provided, however, that all officers, members of boards and commissions, and employees in continuing positions provided for in this Charter or by ordinance not inconsistent therewith, shall continue to serve in such offices or positions subject in all respects to the provisions of this Charter. Employees who are members of the Police Department and the Service Department on the effective date of this Charter shall retain their positions as though appointed thereto under and subject to the provisions of this Charter.