"OT: I can't imagine ..."
"I can't imagine any teacher union disagreeing with the claim that a lousy teacher should be fired."
Similarly, it's difficult to imagine any doctor not wanting to rid the profession of the relatively small percentage of incompetents and bad apples that are responsible for the bulk of malpractice. Ditto the legal profession and plenty of others.
Yet it's true. Doctors and lawyers effectively control regulation of their professions, and it's appalling to see the percentage of total malpractice committed by a small group of bad apples that is not just tolerated, but effectively sheltered and protected. Ditto the legal profession.
So although it's disappointing, it shouldn't be a surprise that the same is true in the education profession, where the power of the body of the whole is used to actively shelter the bad apples, the incompetents, the slackers. I find it genuinely unfortunate that the profession, instead of investing so much money, time, energy and political capital in fighting efforts to weed out those bad apples, doesn't step up, do the weeding itself, and use the leftover political capital, money and energy to focus on other needs. Doubtless if the union was to take matters into its own hands, it would be able to do with a scalpel's precision what the outside "testing" can only do with a butcher knife's worth of imprecision and collateral damage.
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