Many invincible executives require that new hires take intelligence and psychological tests. Sam Fox of the Harbour Group told me that his company simply will not hire anyone, even a receptionist, who is not in the ninety-ninth percentile of all college graduates in intelligence. "There is no substitute for intelligence and integrity," says Fox. One of the main reasons people cut corners in business is that they are not smart enough to get the job done right. So they look for little ways to compensate for their intellectual shortcomings. It may be by taking credit for someone else's work. It may be by saying they completed an assignment that they in fact have not completed. It may involve stretching the truth or the law. A lot of opportunism that you see in the workplace is a cover for incompetence.