The administrative functions of the Town may be performed by the following departments: Water and Sanitation, Streets, Police, Fire, Finance, Executive, and such other departments as are or may be established by this Charter or by ordinances of the Town. Upon recommendation of the Mayor, the Council may by ordinance consolidate or merge any of the said departments whether set forth in the Charter or created by ordinance in order to achieve more efficient operation or administration. All departments of the Town except as otherwise provided in this Charter, shall be under the supervision and control of the Mayor.