The superintendent shall have the following powers, duties and responsibilities:
(1) Subject to the rules of the department of children, youth, and families, the superintendent shall have the supervision and management of the institution, of the grounds and buildings, the subordinate officers and employees, and of the juveniles received at such institution and the custody of such persons until released or transferred as provided by law.
(2) Subject to the rules of the department of children, youth, and families and the office of financial management, appoint all subordinate officers and employees.
(3) The superintendent shall be the custodian of the personal property of all juveniles in the institution and shall make rules governing the accounting and disposition of all moneys received by such juveniles, not inconsistent with the law, and subject to the approval of the secretary of the department of children, youth, and families.