Although the details are different, in McKay’s mind the impulse to measure every aspect of player performance is similar in spirit to the way any evaluator would assess, say, a forty-yard dash. “They would never just watch the guy run and go, ‘That’s really fast’ or ‘They’re kind of slow,’” he says. “They would take a stopwatch. Well, we now have a stopwatch for all of these other parts of the game.”
