Subject only to the authority of the Board, and except as otherwise provided in these By-Laws, the chief executive officer shall have responsibility for the business and affairs of the Corporation. Unless otherwise directed by the Board, all other executive officers, including the president, shall be subject to the authority and supervision of the chief executive officer. The chief executive officer may enter into and execute in the name of the Corporation contracts or other instruments in the regular course of business or contracts or other instruments not in the regular course of business which are authorized, either generally or specifically, by the Board. The chief executive officer shall preside at shareholder meetings. Except as otherwise provided in these By-Laws, the chief executive officer shall have the general powers and duties of management usually vested in the office of chief executive officer of a corporation.