What then would be left to bargain over?
See post here.
Would that also represent all components of compensation, inclusive of medical care and retirement savings?
Would it also represent an upper limit? Surely if Congress can set a minimum then they can set a maximum too, from the perspective of their supposed authority.

What About NEA Pensions?
The NEA had tried in 2003 to get a court to require the legislature to fully fund the pension. It would do little more than put money into investment accounts.