Ala. Code § 45-35A-54.11

The board may assign or delegate to one or more of its members, or to such boards, commissioners, officers, or employees as may be created or selected by it, the performance of such executive and judicial duties and powers as may be necessary or convenient, provided that such assignment or delegation is done by resolution, bylaw, or ordinance, duly enacted according to the terms of this part, and according to the laws of Alabama.