There was a time when sports were all about simple numbers. For most of their existence, they have relied on stats to help interpret what happened rather than to predict future outcomes, and typically, those numbers were of the type that even those with a math phobia (such as yours truly) could wrap their head around.
But in the modern era of our technology-driven society, the world of numerical analysis has become arguably the biggest driving force in how teams and organizations go about assembling their rosters. The question is now whether or not that is actually good for the overall product.