In that case, I'd drop Brian Anderson for an outfielder whom you know is going to get a lot of playing time and put up consistent numbers. I realize you like Anderson as a sleeper, being a Sox fan, but you can still keep an eye on him at the beginning of the season and if he's playing well grab him. Not many people have heard of him, so I think you're better off leaving him off your roster until he's ready to make a sure contribution.
I still recommend Linebrink over Wheeler (they are going to produce similar stats...why not get insurance on Hoffman in the process?).