"Think about it. One absolutely cannot tell, by watching, the difference between a .300 hitter and a .275 hitter. The difference is one hit every two weeks. It might be that a reporter, seeing every game that a team plays, could sense that difference over the course of the year if no records were kept, but I doubt it . . . . The difference between a good hitter and an average hitter is simply not visible – it is a matter of record. But the hitter is the center of attention . . . . If gross miscalculations of a person’s value could occur on a baseball field, before a live audience of 30,000, and a television audience of millions more, what did that say about the measurement of performance in other lines of work?" M. Lewis., 2004. "MoneyBall: The Art of Winning an Unfair Game." Chapter Four: Field of Ignorance, p 72.