Johann Hari ( 20 August ) is exactly right about management consultants. I used to work for a large British company.
Every four years management consultants would arrive at the chairman's door to flog the latest management fad.
This would be percolated through the business at the cost of millions of pounds. Managers with an eye to their careers would report a business transformation. Everyone else would just keep their heads down until it went away.
Within two years the idea would be fading. Within three, it would have disappeared completely, and the decks would be cleared for the next plague of management consultants.
The fascinating questions is, with all these fabulous managers earning £150,000-plus these days, why we need management consultants at all.