Malcolm Gladwell examines the mysteries of Pro Quarterbacks, Good Teachers and Financial Advisers.

In teaching, the implications are even more profound. They suggest that we shouldn’t be raising standards. We should be lowering them, because there is no point in raising standards if standards don’t track with what we care about. Teaching should be open to anyone with a pulse and a college degree—and teachers should be judged after they have started their jobs, not before….

It needs an apprenticeship system that allows candidates to be rigorously evaluated.

Similarly:  what makes a good cleric?
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