No, but there are numbers that many people would consider more important than the others. And if skill is 'not numerically identifiable' than it doesn't matter how many numbers you throw at it, they won't show any skill, which was the point I was making in my response, skill is definitely identifiable by numbers, but what numbers truly identify skill are a matter of opinion. In reality it takes several different stats, not just one. Anyone who thinks that one number is a tell all factor of skill is fooling themselves