Another owner and I are working out a deal in a 4x4 AL only league. We are trying to make a trade that is as fair as possible for both sides. I have 3 first basemen (Fielder, Pujols, and Hosmer) and the other owner has two catchers (Napoli and Carlos Santana). I'm offering Fielder in exchange for Santana. In order to make it as fair as possible, should the other owner add Moustakas, Reynolds, Boesch, Span, or nothing at all? I appreciate any comments. Thanks.