(1) The board of directors of the association shall consist of not less than five nor more than nine persons serving terms as established in the plan of operation. The members of the board shall be selected by member insurers subject to the approval of the commissioner. Vacancies on the board shall be filled for the remaining period of the term in the same manner as initial appointments. If no members are selected within sixty days after the effective date of this article, the commissioner may appoint the initial members of the board of directors.