Improving the weakest slot is “OFTEN THE BEST” way to improving the team? I suppose if you like overly dramatically emphasized marginal upgrades. I mean, the weakest roster spot of at least 25 MLB rosters belongs to the backup catcher - arguably, Boston is one of these teams. How much will these teams really improve with a backup catcher upgrade?
The Sox biggest weakness is likely to be offense. Who hits better? Yoshida? Or Eaton? Or Gasper? Heck, let’s include Romy vs RHP.
For now, Casas and Romy are out. And no, you don’t need to clear places for them. All these other players on the Sox - Monasterio, Gasper, Ziegler, Ward - can all stay on the 40 for now. But they have to wait their turn because they’re simply not as good of a hitter as Yoshida…