There’s something about the culture of business that tends toward excess — in financial markets, to be sure, but also in the “market” for new ideas and management techniques. The dynamic is always the same, whether the idea in question is reengineering, six-sigma quality, or lean production systems: A genuinely original strategy is born in one company or industry, consultants discover the practice and turn it into a marketable commodity, executives in all sorts of other companies race to “buy” the product — and then they wonder why the technique didn’t work nearly as well in their organization as it did in the place that created it in the first place.