What Are the Restrictions on Limiting Collective Bargaining?

My understanding is that while teachers have to meet state-wide standards, they are employees of the specific school district they teach in. I believe all states have state-wide pension funds for ease of management.

Here is a link to the bill in question by the by - PDF - Senate Bill 11

As far as the NLRA, it does not apply to state workers.

From Wikipedia

The Public Safety Employer-Employee Cooperation Act has been introduced several times to grant them equivalent rights, but has never passed, but came very close in 2007.

I have no idea how the Supreme Court would rule if it came before them. Actually, I am fairly certain what the Roberts court ruling would be, but no idea on how they would do so.

Still reaching any relevant court opinions, and hope to see what others come up with as well.