SPECULATOR: September experiments to watch
Around MLB, September is a season for experimentation. For non-contenders, the final month represents a chance to preview certain aspects of an organization's 2013 blueprint. For contenders, desperation often reigns: if something is working, or attrition has removed all of the contingencies and safety nets designed last winter, there's nothing left to do but make the best possible use of the assets on hand.
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