Free Speech is one of those things that must be exercised with prudence.I believe the BOE sent an email to the staff through Mr. Petry that the staff can not speak on any decisions that are made by the BOE, not positive but I think this is what people are speaking of when referring to Free Speech
A person may hate their boss and think him/her a moron, but is it a good idea to blather that kind of opinion at the office every chance one would get? How long do you suppose you will be employed in that office?
(I will give you a hint, in the private sector, not very long)
If someone cannot stand the work environment they toil in daily, they need to find somewhere else that fits their particular criteria.
If someone has opinions of their employers that aren't all that positive they should do themselves and their colleagues a favor and move on to a position elsewhere that fits their criteria.
No one is permanently tethered to a job in the United States, we are free to pursue happiness anywhere.
If one was that unhappy, then they should seek employment in a place that would appreciate that person's blend of professionalism, talent, and personality.
Good luck on your search.