That is, anyway, the assertion of an increasingly influential batch of business-school professors, including noted iconoclasts like McGill University management guru Henry Mintzberg and Yale economist Robert Schiller (who wrote that MBA curriculums are “so devoid of moral content that the discussions of ethics must seem like a side order of some overcooked vegetable”). More reasoned types like the late Sumantra Ghoshal of the London Business School, whose posthumously published Bad Management Theories Are Destroying Good Management Practices has roiled the business education world, agree. “Business schools do not need to do a great deal more to help prevent future Enrons,” Ghoshal wrote. “They need only to stop doing a lot they currently do.”