There are several insights at the heart of the A's system that I think are wonderful for baseball. One, that it's a team game. That no one player is going to make that much of a difference to your team, so for god's sake don't go blow a quarter of your budget on one guy.

W. Books
Michael Lewis (2011). Lewis worked for Conde Nast Portfolio but in February 2009 left to join Vanity Fair where he became a contributing editor.

Michael Monroe Lewis (born October 15 1960) is an American non-fiction author and financial journalist. His bestselling books include The Big Short: Inside the Doomsday Machine Liar's Poker The New New Thing Moneyball: The Art of Winning an Unfair Game The Blind Side: Evolution of a Game Panic Home Game: An Accidental Guide to Fatherhood and Boomerang.