I'd much rather get a second arm rather than a guy like Diaz. If we do end up with a second position prospect, I'd much prefer it to be Mejia. Why not a fan of Diaz? Seems like he could hit for a high average, provide good OBP% skills, and play above average defense. He hasen't shown too much power, but the rest of his game is pretty nice. Not to mention he sounds like he is pretty versatile with the ability to play everything, but SS. I would not mind him as a secondary piece.