When athletes exercise they keep track of series, repetitions, weight, how many miles you are running, distance, times, etc. If you make an adjustment that enh

When athletes exercise they keep track of series, repetitions, weight, how many miles you are running, distance, times, etc. If you make an adjustment that enhances your performance you may notice it. Tactics and strategies are more situational and harder to track because they are not universally superior but rather situational. You can still see results if the athletic performance of the team is enhanced... you can see it in metrics like ball possession and such.