There are currently 30 contenders to win the 2011 World Series, but half of them won’t last through the summer.
There are 15 teams who stand out from the rest and on each team there is one player who can tip the scales for or against them.
They are not the best players on their teams, but they play a pivotal role in a title run and a role that no one else on the team can fill. They are also not safe bets. These are players who could go either way and we wouldn't be surprised.
So in whose hands does the fate of the world rest?