(a) The Governor may establish within the Department such divisions and bureaus as he deems necessary for the proper administration of the Department.
(b) At the head of each division established under this section, there shall be a Director; and at the head of each bureau established under this section, there shall be a Chief of the bureau.
(c) The heads of divisions and bureaus shall perform such functions as the Commissioner prescribes; and if any bureaus are established within a division, the director of such division may also serve as chief of any such bureau, and the chief of any such bureau may also serve as the acting chief of other such bureaus within the division.