"Moneyball" is a 2004 book by Michael Lewis that described how the Oakland A's used advanced analytics to find inefficiencies in baseball scouts' evaluations of baseball prospects, reducing biases based in traditional heuristics. It also drove increases in home runs and strikeouts, based on their true statistical value in producing runs.
The Moneyball revolution also spread to the NBA, where statistical analysis drove teams to optimize shot efficiency, by taking as many three-pointers and shots at the rim as possible, and reducing midrange shots.
An October article in the Atlantic magazine by Derek Thompson explores the implications of the trend of rigorously quantifying decisions previously made substantially by gut feel.
What has been the result of this optimization? Both games have arguably lost much of their aesthetic value.
In baseball, players are taught to swing on a high arc to maximize home runs. They also produce more strikeouts than hits.
In the 1970s, Minnesota Twins star Rod Carew mesmerized baseball fans by several times coming close to hitting .400 in a season. But Carew was a singles and doubles hitter, who never had more than 14 homers in a season.
Baseball's classic aesthetic was more about getting a man on base somehow, moving him to second with a sacrifice bunt, and getting him to score with a single up the middle.
The game today is much less subtle.