425.12 Officers.—The officers of a cooperative shall consist of a president, vice president, secretary and treasurer, who shall be elected annually by and from the board of trustees. No person shall continue to hold any of the above offices after ceasing to be a trustee. The offices of secretary and of treasurer may be held by the same person. The board of trustees may also elect or appoint such other officers, agents, or employees as it shall deem necessary or advisable and shall prescribe the powers and duties thereof. Any officer may be removed from office and a successor elected in the manner prescribed in the bylaws.