Several years ago, the Major League Baseball Players Association (MLBPA) went on strike in September, just before the World Series started. The players’ contract expired at the beginning of the season (May), but they held off the strike until September when they would lose only one-sixth of their salaries. In contrast, a September strike would hurt the owners financially because they earn a larger portion of their revenue during the playoffs. As one player explained: “If we strike next spring, there’s nothing stopping [the club owners] from letting us go until next June or July because they don’t have that much at stake.” Use your knowledge of the sources and contingencies of power to explain why the MLBPA had more power in negotiations by walking out in September rather than March.