The City Council shall appoint by majority vote officers, boards, and commissions as may be required by state law and may appoint other boards, commissions, and committees that the City Council may, within its discretion deem proper; any of these appointments may be removed by a majority vote of the council at the pleasure of the City Council. This power of appointment includes the employment of professional, technical, and other expertise necessary and advisable to the efficient operation of the municipal government. The terms of these appointments shall be as prescribed by state law or City ordinance.