The Mayor may appoint a hearing officer to hear matters under this ordinance as follows:
(A) Any hearing officer appointed prior to the effective date of this ordinance shall be a classified employee in the Office of Administrative Hearings, and;
(B) Any hearing officer appointed after the effective date of this ordinance shall be appointed for a term of five years;
(C) In addition to or in the alternative, the Mayor may retain contract hearing officers, subject to the approval of the City Council.