Relief pitchers have important roles in baseball today, often coming in to pitch at some of the game's most critical and exciting moments, but they have not always been a part of the game. This work provides a history of relief pitching in the major leagues and explains how, why, and when it began to evolve. It discusses the first managers--John McGraw, Leo Durocher, and Joe McCarthy--who used relief pitchers to win games, and the managers who...