Sec. 16. Upon notification that a vacancy has been filled by a precinct election board under section 14 of this chapter, a county election board shall:
(1) upon written approval of the appropriate county chairman, confirm the appointment by issuance of proper credentials to the precinct election officer so appointed and approved; or
(2) upon nomination by the appropriate county chairman, appoint a qualified person to replace the officer then serving, in which case the officer appointed by the county election board shall be issued proper credentials.