(a) Each corporation must have a board of directors.
(b) Except as provided in this chapter or subsection (c), all corporate powers must be exercised by or under the authority of and the affairs of the corporation managed under the direction of its board.
(c) The articles may authorize a person or persons to exercise some or all of the powers which would otherwise be exercised by a board. To the extent so authorized, the person or persons shall have the duties and responsibilities of the directors, and the directors shall be relieved to that extent from the duties and responsibilities.