(2) The board may create an executive committee of which every commissioner shall be a member and of which a number less than a majority, as the board may determine, may constitute a quorum for the transaction of business. The committee may hold its meetings under such rules as the board may prescribe. However, the executive committee has no power except as a committee and only as expressly conferred upon it by the rules of the board. In no event shall the committee exercise the general powers of the board. The board has no power to appoint or delegate any part of its power or authority to any committee except the executive committee. [1987 c.565 §8]