(a) This subchapter does not apply to a contract solely for professional services rendered, including services of an architect, attorney, or fiscal agent.
(b) If a district elects to make a procurement under this subchapter, this subchapter prevails over any other law relating to a purchase contract for goods and services by the district that is in conflict with or inconsistent with this subchapter.
(c) Chapter 2269, Government Code, does not apply to this subchapter.