I would think if Boston wants a shortstop at this point, they would be much more interested in Hardy than Escobar. They would have him for a year and a half, and would probably have an excellent chance at getting him re-signed if they wanted to. While Hardy has struggled this season at the plate, he is still very good defensively and just seems like he would fit in well with the BoSox. With Escobar, they'd be getting more of an unknown quantity, and the trade would look pretty terrible for them if he does indeed struggle at the big league level. They're a first place team right now, but with the Yankees nipping at their heels, they probably really can't afford to try a rookie at a key position.