At almost every position there's players with near or immediate history of above-average offensive production (relative to the whole league rather than their position) . Wong/McGuire is the only exception, I think. Devers, Casas, Story, Urias, Yoshida, Duran, and Verdugo have all been players who have in recent memory given you sustained production at the plate. Two of them (Urias and Story) have seriously scuffled, albeit in limited time, this year, and both have come off major injuries. If you think those two will return to above-average production, there's some of the right-handed power you've been hoping for.
Here's the thing: of that group, only two of them have a recent history of being a plus on defense - Story and Verdugo (who as recently as the last two years was bad). Urias is, I think, the only one who we could say has been averageish for his career.
Yoshida, Casas, Devers, and Duran have all been below-average-to-very-bad.
Of the prospects who seem immediately on the cusp of being big-leaguers, Rafaela projects to be gold-glove quality (and he's flashed that in the outfield), while Abreu projects to probably be average in left and below-average in center and right (and maybe very bad in center), and Valdez stinks at 2B.
A full season of Rafaela in the outfield and Story at SS should help this team along hugely defensively. Verdugo is the only one of the position players who is coming up immediately on a payday and is also the one who we'd struggle the most to replace because of his defense. If we move on from Verdugo, that means we either have to try to slot Wilyer or Rafaela out there, barring some other move, which likely means leaving Duran in center, where he could still improve or regress. Rafaela could be a 3-4 win player just on his defense next year, and I expect them to put him out there to sink or swim. Abreu I think could be a 2-3 win player as soon as next year as well, which makes Verdugo and Yoshida more or less expendable.
I wouldn't be surprised to see them send two of Refsnyder, Duran, Yoshida, or Verdugo off in order to make room for Wilyer/Ceddane and another right-handed bat. Duran fits best in left field and his tools are enchanting, but I don't see him sustaining his performance. On the other hand, he hits the ball hard and has got speed, which almost no one else on the team has. Yoshida could stay in LF next year or slot in at DH with a smattering of LF play. I'm interested to see how he hits next year after adjusting to playing a full season but don't think his hitting is good enough for DH or to play him in left. Verdugo is dropping in at a wrc+ of 102 again, and while his defense is above-average, he's about to get expensive. This isn't a referendum on any of these guys, just to say that each of them has their warts and the team needs superlative players and currently doesn't have any in the outfield.
I would be kind of shocked if they shipped off Story, unless there's someone else they're targeting, as his value couldn't be lower, and if he stays on the field and gives you a wrc+ of 100, that's probably a 4 win player. Ditto for Urias - he's going to compete for the 2B job and probably win it because he can play defense and Valdez can't. Those two guys have given you bWAR seasons north of 3 (in Urias case) and 4 (in Story's case) which would have made them two of the best players on the Red Sox if they'd been healthy this year.
Buying a first baseman or third baseman and moving Casas or Devers to DH is another option, of course, and that would probably also mean moving on from Yoshida, since he wouldn't be able to DH anymore.
