The commission shall specify the duties and powers of the administrator by printed rules and regulations entered in its minutes and shall develop and implement policies that clearly separate the policy-making responsibilities of the commission and the management responsibilities of the administrator and the staff of the commission. The commission or administrator may develop a procedure under which the commission or administrator, or the designee of either, may negotiate the repayment of debts owed the commission, including fees and delinquent taxes. When this code imposes concurrent powers or duties on the commission and the administrator, the commission shall designate those powers and duties which it delegates to the administrator. An order, decision, or judgment rendered and entered by the administrator in a matter in which the administrator has been authorized to act is not subject to change, review, or revision by the commission. A concurrent power or duty which has not been specifically delegated to the administrator by the commission’s order is retained by the commission, and an order, decision, or judgment rendered and entered by the commission in a matter in which the commission has retained authority is not subject to change, review, or revision by the administrator.