How do teams take players from promise to big league production? Grantland's Jonah Keri takes a look at some different developmental approaches for players approaching MLB readiness, most of them from AL clubs. The Twins, for example, advance players based upon their readiness to fill a need at the MLB level, while the Rays pay close attention to service time in a bid to maximize the value of each player asset. Here's more from the American League: The Indians are still believed to be discussing an extension with second baseman Jason Kipnis, reports Paul Hoynes of the Cleveland Plain Dealer....

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