The City Commission shall appoint a City Manager, Constable and City Attorney, who shall serve at the pleasure of a majority of the membership of the City Commission. The City members of the County Board of Supervisors shall be residents of the City, shall be appointed by and shall serve at the pleasure of a majority of the membership of the City Commission, except that the Mayor and City Assessor shall be representatives by virtue of their offices. All such supervisors shall be entitled to retain compensation received in such capacity.