Section 8. Appointing power. (1) The departments provided for in section 7 shall be under the supervision of the governor. Except as otherwise provided in this constitution or by law, each department shall be headed by a single executive appointed by the governor subject to confirmation by the senate to hold office until the end of the governor's term unless sooner removed by the governor.
     (2) The governor shall appoint, subject to confirmation by the senate, all officers provided for in this constitution or by law whose appointment or election is not otherwise provided for. They shall hold office until the end of the governor's term unless sooner removed by the governor.
     (3) If a vacancy occurs in any such office when the legislature is not in session, the governor shall appoint a qualified person to discharge the duties thereof until the office is filled by appointment and confirmation.
     (4) A person not confirmed by the senate for an office shall not, except at its request, be nominated again for that office at the same session, or be appointed to that office when the legislature is not in session.