The foundation and the commission shall enter into an agreement that establishes the:
(1) working relationship between the foundation and the commission in connection with the activities conducted at the sites described by Section 442.152(a);
(2) best practices under which the foundation may engage in business activities described by this subchapter;
(3) relationship between the commission's employees and the foundation; and
(4) guidelines for identifying and defining the administrative and financial support the commission may provide in connection with the sites described by Section 442.152(a).