Here, for example, is Article 8, Section 5:
"NEA may discipline a probationary employee for any cause, and may discharge a probationary employee for any cause or no cause; provided that NEA shall take no action in this regard that is contrary to Article 5 of this Agreement."
Article 5 prohibits job discrimination on the basis of race, sex, etc.
You'd almost think these people needed a union. Oh wait, they already have one, and they work for a union.