Edgy DC wrote: Really good summation. Thanks. The onus falls on the buyer (ie the baseball club) to screen (or identify) others. But you can only benefit from it, if other clubs are not alert to it. For example, the A's are now screening high school ballplayers, a category of players they wouldn't touch, to see if they are undervalued and subsequently exploit an advantage. If they can, I guarantee any advantage they may gain will only exist in the short-term. Especially if some guy writes a book about what they're doing and why. The writer portrays them as fairly smug about no one noticing are caring about 'new statistics'. For instance, he talks about showing players that they do better when they lay off the first pitch, and that works for a couple of days, and then they go back to swinging at it. Billy Beane also came off as a bit of a deranged lunatic.