La. Stat. tit. 37 § 7
The work of the department, other than that assigned to any board thereof, shall be distributed among the divisions of the department. The heads of divisions shall be appointed by the director.
Except as the internal organization structure of the department and the establishment of divisions are specially provided by this Chapter, the governor, on recommendation of the director, may authorize the director to combine existing divisions, divide existing divisions, establish new divisions, change the names of divisions, add new functions to existing divisions, or transfer functions and staff from one division to another within the department.
The director may create, combine, or divide subordinate units within a division or otherwise alter the internal organization of a division.
La. R.S. § 37:7