Subject to such executive direction and control as is vested in the governor as chief magistrate of the state by the constitution and by this Part, the director has the management of the department and, subject to the provisions of this Part, shall exercise all the functions of the department through the department organization provided, in carrying out the provisions of law with respect to those functions, except any functions which are specifically assigned to any board of the department under the provisions of this Part.  

Any act performed by any employee of the department under the authority of the director shall be considered an act of the department and of the director.