not only do we consider the goals that our team score more important than the goals they do not concede, but we value the tackles they make more highly than those challenges that their preternatural sense of positioning, their game intelligence, mean they do not need to make. That is where Ferguson went wrong. He needed to engage in counterfactual thinking: Stam was not doing as much, but that was not a sign of weakness, it was a sign of his quality. But because Ferguson could not see those unmade tackles, he did not value them.
