The committee may consist of not more than nine members, drawn from the fields of public affairs, education, the sciences, the professions, other fields of private endeavor, from the state or local service, and three additional members from the 17-22 age group, and shall include women and representatives of minority groups. The members shall be appointed by the board in the manner prescribed by the board without regard to political affiliation and shall serve at the pleasure of that body. One member shall be designated by the board as chairman of the committee.