Book excerpt: In 1996, a brassy young team of fansproduced a guide to baseball statistics.Printed on a photocopier, its distribution,which was in the low hundreds, was limited tofriends, family, and die-hard stat heads. Sixteenyears later, the Baseball Prospectus annualregularly hits best-seller lists and has becomean indispensable guide for the serious fan. In Extra Innings, the team at Baseball Prospectusintegrates statistics, interviews, and analysis todeliver twenty arguments about today's game.In the tradition of their seminal book, BaseballBetween the Numbers, they take on everything fromsteroids to the amateur draft. They probe theimpact of managers on the game. They explainthe critical art of building a bullpen. In an erawhen statistics matter more than ever, Extra Inningsis an essential volume for every baseball fan.