A new book in which the author points out that society's increasing use of metrics to evaluate performance has consequences for the very behavior being measured; consequences that are sometimes good and sometimes bad.
As an example, the "performance" of surgeons is increasingly measured by metrics that count surgical success (avoiding death or negative outcomes). The result? Studies reveal that, increasingly, surgeons decline to offer surgery to patients with complex conditions and questionable outcomes, resulting in deaths because their conditions, while requiring surgery, involve outcomes that are not "safe" enough from the perspective of surgeons engaged in "risk avoidance" because they are now being measured by metrics.
The author says he is not against the use of metrics; he is only against the overuse of metrics; against metrics not being a tool for judgment, but rather metrics being a complete replacement for judgment (judgment based upon experience).
It got me to wondering: Has the increased reliance upon metrics in sports had unintended, unforeseen, negative impacts that has changed how baseball (or other sports) is played?