Mo. Rev. Stat. § 361.268
If at any time because of the suspension of one or more directors pursuant to sections 361.262 to 361.269 there shall be on the board of directors of a corporation less than a quorum of directors not so suspended, all powers or functions vested in or exercisable by such board shall vest in and be exercisable by the director or directors on the board not so suspended, until such time as there shall be a quorum of the board of directors. In the event all of the directors of a corporation are suspended pursuant to sections 361.262 to 361.269, the director shall appoint persons to serve temporarily as directors in their place and stead pending the termination of such suspensions, or until such time as those who have been suspended cease to be directors of the corporation and their respective successors take office.
§ 361.268, RSMo