the leader is competent and knows how to do such things. Furthermore ,if we examine the records of management advisers, we see another interesting parallel to the use of witch-detectives and magicians, for "like tribal magicians they can never be proved wrong. For a failure in divination shows the practioner was unskilled, broke a taboo , used the wrong material -- or that mystical forces have changed, so incorrect forecasts by statistics show that the statistician was mistaken , used a bad model, or had incorrect figures --or economic forces have changed