So the very idea that there is a system for success in professional football, analytics, is really a bogus idea. Like gambling, you can increase the odds of success POSSIBLY, but the odds are still the odds. You can never predict whether or not you get a Curtis Martin or a Shawne Merriman... a Warren Sapp or an Albert Haynesworth... an Andrew Luck or a JaMarcus Russell. Injuries... mental issues... drug issues... it just cannot be defined to be sure.