Spending problems may involve special interests, but it seems to me like a big part of the problem is the debate about groups like the teachers union has far more to do with ideology than actual spending. So Republicans and Democrats argue about unions vs tax cuts for rich people, funding the NEA vs funding an Army NASCAR team. Not only do these arguments totally polarize the debate, they also frequently miss grounds for compromise because both sides are too busy trying to "win" the ideological argument than actually cutting spending.
The WI teachers union is a perfect example. The Republicans want to cut benefits to curb spending, and they also want to remove most of the power of the union. Rather than trying to get Democrats on board with reasonable spending cuts, they take a path guaranteed to get widespread opposition from liberals. And WHY? Because Republicans don't like unions, and while the budget is important, it's not as important as beating a group you don't like.
This talking point you've echoed is a popular one right now. Getting concessions from the unions in Wisconsin is necessary to help get the budget under control. The unions have agreed to that. But concessions without constraints on the bargaining process just means the problems will return.
As a former union member for 30 years, I can tell you exactly how the union is selling the concessions to their members. The members are being told that they will win back what they are giving up in the next contract negotiations. Concessions are only a temporary solution without constraints.
An all powerful union is detrimental to your job over the long haul. It's evident in Wisconsin and it was evident in the thousands and thousands of auto worker jobs lost in the state in which I live. Your union given enough time, will price your labor higher than the market will bear. Your union, as the sole provider of labor to an employer (essentially the agreement reached between the union and the employer) will eventually price your labor at a higher cost than is reasonable and customary. It's the downside of unions. In order for the union to survive and prosper they feel they must continually and regularly produce. They do that in part by getting their members increases in pay and benefits. It's a vicious cycle that can only end one way.
So, from time to time, the system must be reset.
Where the governor went too far is the requirement for what is essentially recertification on a yearly basis. I see his point and I've stated my thoughts in that regard in another thread. He got the concessions, but he absolutely needs to get restraints to help keep the problem from resurfacing. The recertification is a battle he should have left to fight another day. I think he'll wise up. It may have been the bargaining chip, the out, he built into his plan to begin with.