The Red Sox have made a few mid-season moves this season, and for the most part, they’ve paid off with key contributions coming from players like Victor Martinez, Alex Gonzalez and Paul Byrd.

It’s not a new trend. Since the well-known Garciaparra swap and the pick-up of Dave Roberts in 2004, Boston has made a number of mid-season moves, including transactions that netted the club Jason Bay and Orlando Cabrera, to name a few.

So who’s your favorite Red Sox in-season acquisition?