As a Scott Boras client with two years left of service time, now might be the time to cash in for Kenny Williams. The feeling seems to be that Josh Fields is ready to step in at third base after posting an .894 OPS at Triple A as a 23 year-old. Of course, no one knows what kind of overall dropoff the Sox would experience in making that substitution.
Williams, of course, holds other important cards in his starting rotation. It makes sense to deal a pitcher separately rather than package one with Crede.