Disagree. Schwarber was a fine pickup who is playing so out of position he's throwing balls into the wives' section at Fenway.
This bullpen needed bolstering. To me, the moves were more rearranging the deck chairs.
Is Xander's profile better at 2b or 3b? If Xander is a better fit at 3b, you need to move both players. I would hold off until there was a suitable SS replacement though (Mayer). Eventually, Devers would be LF/DH IMO.
Jeter: highest fWAR season was 2009 at 6.7
Xander: highest fWAR season was 2019 at 6.8
Therefore, Xander is as good as Jeter offensively BUT better than Jeter defensively by far.