The directors are authorized to employ and fix the compensation of architects, attorneys, engineers, superintendents, consultants, professional advisors and other subordinate officers and employees, as may be necessary for the efficient management and operation of the authority and its facilities. Such persons shall continue in the employment of the authority at the will and pleasure of the board of directors. Such employment or contracts shall conform to the statutes, regulations and procedures to which counties must generally adhere in making such transactions.