In watching the NFL draft recently, I was struck at how much attention and money is spent "breaking down" every player: how they run, jump, throw and move. Even the size of virtually every body part is fully analyzed. They are interviewed, as are their previous coaches and other important adults, to learn as much as possible about flaws and strengths. Much depends on getting things right for both the team and the player. The stakes are high. Yet with all the analysis, there are plenty of mistakes. Some "can't miss" prospects do miss, and others who weren't even drafted become stars. Most fall somewhere in between. Having standards that try to measure the likelihood of a player's success on a football field is inexact at best -- as much art as it is science.