Pot calling Kettle black!

That's interstate business.

Yeah , and the cases during the civil rights thing showed that even local business is interstate business . Plus of course you have the other rulings that local business practice can fall under the protectionism thing which is against the interests of interstate business .
So unless you are one of those inbred shopkeepers from Royston Vasey they have you covered .

who's to say that a more qualified or more experienced person didn't apply for the job?

Errr...that would be the court wouldn't it , where the school will have to show that they chose a better candidate .