Pitchers and catchers report in, what, 6 weeks? That means the third quarter of the offseason has just ended. At this point the focus should be CF. SS can be adequately handled by a combination of Cora/Pedroia/Graffanino. Let Dustin compete for the job in ST. If he's back to pre-wrist injury form, then give him the job and let Cora be the MIF bench player. If he still needs seasoning, let Cora/Graffanino man the position until Dustin looks ready. Graffanino should be kept around anyway since he's a super-sub who can play MIF and COF, meaning he could be an answer to the Trot platoon-mate situation and he could spell Manny when he needs it.
None of the CF options mentioned are worth a blue-chip prospect. Reed is a former BA top-100, but I wouldn't trade either of the big arms or Marte for him. If Seattle doesn't budge from a Papelbon/Lester demand, then find a CF elsewhere. Roberts for Wells works for me, if they can get SD to understand that Woody Williams won't be pitching in Fenway with the hometown jersey on. Patterson has been mentioned as someone to acquire to get Reed, but I think he would be an acceptable stopgap, and I think that is what the options are limited to at this point, stopgaps. Another alternative is to break in a prospect. Murphy, Moss, Durbin, and Stern should all get an invite to ST and be given a shot at the job.
EDIT: It seems Patterson is going to the O's. However, this makes Matos expendable, although Baltimore is probably thinking the FO is desperate to expect any rumor about a Matos trade to have them asking for the moon.