Not in a very long time—not, perhaps, since the late 1940s or early 1950s—have there been as many new major management techniques as there are today: downsizing, out-sourcing, total quality management, economic value analysis, benchmarking, reengineering. Each is a powerful tool. But, with the exceptions of outsourcing and reengineering, these tools are designed primarily to do differently what is already being done. They are “how to do” tools.

A version of this article appeared in the September–October 1994 issue of Harvard Business Review.