Many of the most powerful trends in baseball today have their roots in the 1970s. Baseball entered that decade seriously behind the times in race relations, attitudes toward conformity versus individuality, and the manager-player relationship. In a sense, much of the wrenching change that American society as a whole experienced in the 1960s was played out in baseball in the following decade. Additionally, the game itself was rapidly evolving, with the inauguration of the designated hitter rule in the American League, the evolution of the closer, the development of the five-man starting rotation, the acceptance of strikeout lions like Dave Kingman and Bobby Bonds and the proliferation of stolen bases.
