Ordinances, resolutions, and other matters or subjects requiring action by the council shall be introduced and sponsored by a member of the council, except that the city attorney, the city manager or the city clerk may present ordinances, resolutions and other matters or subjects to the council, and any member of the council may announce and assume sponsorship thereof by moving that such ordinance, resolution, matter or subject be adopted; otherwise, it shall not be considered. [Code 2006 § 2-5-2].