The best employee may not even get noticed for a long time. When running a big company, there are those employees that are your diamonds in the rough. The funny thing is, they can be hidden under a manager or supervisor that doesn't recognize what they have. The trend toward the psychometric test is one of the ways to identify the people who will work for you and recognize their potential sooner than later. The worst case scenario can be that the employee leaves before they get their chance to shine. The nuances of management has many pitfalls, the smart way to navigate is to increase the information you have to work with, and make your decisions clearer.