(a) Except as provided by Subsection (b), the designation by this chapter of certain divisions and division chiefs is not mandatory and this chapter does not prevent the commission from reorganization or consolidation within the department in the interest of more efficient and economical management and direction of the department. The director, with the commission’s approval, may organize and maintain within the department divisions of service considered necessary for the efficient conduct of the department’s work.
(b) The division relating to the Texas Rangers may not be abolished.