Moneyball, a book by Michael Lewis, highlights how the Oakland A's developed a new analytical approach to talent evaluation in baseball by focusing on overlooked statistical measures. This new sabermetric approach was a shock to other baseball executives who relied more on conventional scouting. The book also shows how cognitive biases can negatively impact decision-making. It examines how the A's general manager, Billy Beane, was more effective by constructing a framework highlighting the differences between his team's analytical approach and other executives' heuristics. Moneyball also illustrates how people tend to overestimate success and face financial losses by ignoring evidence, as teams did by forfeiting millions by not adopting the A's strategy.