The Administrator shall prepare in writing a manual of necessary employee positions for the Department, including job classifications, personnel qualifications, duties, maximum and minimum salary schedules, and other personnel information for approval by the Commission. The Administrator may, with the approval of the Commission, select, appoint and employ such accountants, attorneys, auditors, examiners, clerks, stenographers and other personnel as he deems necessary for the proper administration of this act,¹ and may fix their compensation and the salary of the Deputy Administrator. The Deputy Administrator and other employees of the Department shall serve at the pleasure of the Administrator.