The director or chief executive officer of each of the departments established by law within the Executive Branch of State Government shall conduct such investigations and studies as he or she deems necessary to determine the most efficient and economical use of the personnel of the department. The director or chief executive officer may transfer the personnel of one or more divisions of his or her department to one or more other divisions if he or she finds that such transfer will result in a greater utilization of personnel, produce a more efficient operation of the department, result in economies within the department or improve the organization of the department.