As Michael Novak observes in The Spirit of Democratic Capitalism, “A successful corporation is frequently based upon the principle of subsidiarity. According to this principle, concrete decisions must be made on the level closest to the concrete reality. Managers and workers need to trust the skills of their colleagues. A corporate strategy which overlooks this principle–and many do–falls prey to all the vices of mand economy, in which all e from above.”

According to a study by Melba J. Duncan in the Harvard Business Review, such delegation makes economic sense: “Generally speaking, work should be delegated to the lowest-cost employee who can do it well.”

A recent BusinessWeek article updates the case for executive assistants. Anyone who has had significant contact with corporate settings knows that the EAs are the ones who really get things done. But for such delegation to be effective and efficient, it must be empowering. As Duncan writes, “The most effective executives think deeply about the pieces of their workload that can be taken on—or restructured to be partially taken on—by the assistant.”

Even the “lowest-cost employee” has a stewardship responsibility.

Of course, delegation can go too far, too.