Renteria???
Personally I'd rather see Cabrera. While Renteria is better offensively, I don't think he's a major upgrade (althoguh Cabrera is having a down year). However both are good defensively, Cabrera is a bit better, but most importantly if the BoSox let him walk (dont' ask me if they will) then I think he would be a good pickup, but I'd most like to see the Sox spend money on pitching.
Its also obvious they need top of the order guys and I don't think Renteria is a 2 hitter, but I guess you could do it. Its just to me, he's gonna get 8 mill and his production doesn't warrant that. He can't be as good as he was in St. Louis, when he loses all that protection. He's good, but I don't know about 8 mill good.