There's an article on ESPN ranking all the MLB farm system by "empirical surplus dollar value", whatever that is. The Twins are ranked as #9. That's a little bit higher than I would have expected and the ranking does not appear to include the Seattle prospect we just got in the Polanco trade, at least he is not mentioned. They do mention Lee, Martin, Festa, Canterino, and Cory Lewis as guys at upper levels who could make an impact this year or next, and Rodriguez and Raya as guys who could make
