Put your best people under a microscope. Through a combination of circumstance, skill, and grit they have figured out how to excel. Identify not just your best all-around athletes, but the best specialists. Don’t find the best salesperson; find the person who sells best to new accounts of a certain size. Find the person who excels at hitting golf balls at night in the rain. The more specific you can be in slicing expertise, the easier it will be to study your stars and discern why they are more successful than others.