Tenn. Code Ann. § 48-58-104: Election, designation, and appointment of directors

(a) If the corporation has members, all directors (except the initial directors) shall be elected at the first annual meeting of members, and at each annual meeting thereafter, unless the charter or bylaws provide some other time or method of election, or provide that some of the directors are appointed by some other person or designated.

(b) If the corporation does not have members, all directors (except the initial directors) shall be elected, appointed or designated as provided in the charter or bylaws. If no method of designation or appointment is set forth in the charter or bylaws, the directors (other than the initial directors) shall be elected by the board.