The commissioner may assign an assistant commissioner or, subject to approval of the State board, may appoint and fix the compensation of directors, inspectors, and assistants to act as secretary of the State board of examiners and to act in connection with the issuance of qualifying academic certificates and, so far as they relate to the public school system of the State, to perform one or more of the following services:
N.J.S. § 18A:4-35