HH,
I won't dispute the system your wife works in as it sounds pretty sound. There are many other cities/counties out there that are in a system that is no where near like the one your wife works in.
So far, she has taught in four districts (including Contra Costa)...and they were all pretty much the same. The only exception was a private school, where they really didn't care about performance- go figure.
My contention is that every company has bad apples...no question. Are teachers any better/worse because there is a union? Nope. I have slugs sitting next to me right now, and last I checked, there was no union here.
Arnold is barking up the wrong tree...