In order to obtain maximum efficiency and effectiveness within the department, the director may create such administrative divisions within the department as he or she deems necessary. The director shall appoint a deputy director as well as such assistant directors as shall be needed to administer the several divisions within the department. The deputy director shall have charge and general supervision of the department in the absence or disability of the director. In the case of a vacancy in the office of director, the deputy director shall administer the department until the governor appoints a successor to the director or an acting director. The officers appointed under this section and exempt from the provisions of the state civil service law as provided in RCW 41.06.073, shall be paid salaries to be fixed by the governor in accordance with the procedure established by law for the fixing of salaries for officers exempt from the operation of the state civil service law.