I'm get tired of having to explain this. "Free Speach" provides protection against the GOVERNMENT from punishing free speach. It does not apply to a private enterprise, who can fire anyone for saying something they don't like unless their employment contract says otherwise. (The university - as a state actor - would have been bound by the First, except he didn't work there since May 2012. Also, even they can fire someone for being a jerk aka embarassing the university if the employment agreement includes suitable provisions.)