Devising the Dodgers’ composite prospect rankings.

Before the famous economist/statistician/sabrmetrician Nate Silver was chosen as one of Time Magazine’s 100 most influential people of 2009, he crunched baseball stats for BaseballProspectus.com. He found more success in the political arena by taking an old idea and adapting it to a new subject.

Specifically, Silver aggregated just about every pre-election poll he could find, giving each one more or less weight through a formula he devised, to come up with a reliably accurate “prediction model” for the major U.S. elections.

With a nod to Nate, I decided to aggregate four recently released lists ranking the Dodgers prospects — Baseball America, FanGraphs, Minor League Ball and Baseball Prospectus — into a composite ranking. There’s no weighting formula and this is no prediction model. (Besides, success in baseball can’t be defined objectively; if it were, there wouldn’t be so many damn stats). So while Yasiel Puig is listed first in the table you’re about to read, I can’t tell you what that actually means for his long-term baseball success. I can only promise he will not be elected president of the United States.

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