There are created under the department two coordinate divisions, the South Carolina State Employment Service Division, and a division to be known as the Unemployment Compensation Division. Each division must be administered by a full-time salaried director, who is subject to the supervision and direction of the department. The department may appoint, fix the compensation of, and prescribe the duties of the directors of these divisions. The director of each division shall be responsible to the department for the administration of his respective division and has the power and authority as vested in him by the department.