(1)    Unless otherwise provided by law, each state agency may appoint such deputies, assistants, experts, clerks, stenographers or other employees as are necessary for the execution of its functions, and to designate the titles, prescribe the duties, and fix the compensation of such subordinates, but these powers shall be exercised subject to the state civil service law, unless the position filled has been expressly exempted from the operation of ch. 230 and subject, also, to the approval of such other officer or body as is prescribed by law. If a state agency contains a board or commission which is authorized to appoint an executive officer by whatever name called, the appointing power resides in the executive officer and the board or commission has no further appointing power except as it is specifically given such power.

   (2)   Notwithstanding ss. 230.047 and 230.29, when an appointing authority determines and declares in writing to the governor that an emergency exists which is the result of natural or human causes which adversely affects the effective administration of state agency program functions that are necessary to the well-being of the citizens of this state, the appointing authority may temporarily assign work to employees which is not normally performed by them or described by their position classifications. Such temporary assignments during these emergencies may not exceed 72 hours unless an extension is approved by the governor or his or her designee.