(a) The Governor shall appoint a warden and such assistants or division directors as the Governor considers necessary for the proper administration of the Bureau. The warden, assistants and division directors shall hold office during the continuance in office of the Governor by whom they are appointed and until their successors are appointed and qualified, unless sooner removed by the Governor.
(b) The warden, assistants and division directors appointed under this section shall perform such functions as the Director prescribes.