Leonard Pitts:

A year or two ago, I received this e-mail. The writer was upset with me for arguing that school principals should have the power to fire teachers who do not perform. As numerous educators have told me, union protections being what they are, dumping a teacher — even a bad one — is an almost impossible task.
My correspondent, a teacher, took issue with my desire to see that changed, noting that without those protections, she’d be at the mercy of some boss who decided one day to fire her.
In other words, she’d be just like the rest of us. The lady’s detachment from the reality most workers live with struck me as a telling clue as to why our education system frequently fails to educate. When you can’t get fired for doing bad work, what’s your impetus for doing good?
Many of us seem to be wondering the same thing.