Tenn. Code Ann. § 4-4-102: Transfer of functions between departments

(a) The governor has the authority to transfer any functions between the departments created and established by chapter 3 of this title, except to or from the department of audit, in the interest of a more economical and efficient state service.

(b) The governor shall make each such transfer by an executive order, a copy of which shall be filed with the secretary of state.