Looking at it this way.
The Sox could field a lineup today, if the put Rafaela at 2b and Duran in CF. It’s not ideal, but no one is out of position.
If they sign Bregman (OPS+ of 121 in the last 3 seasons), then they have no place to play one OF, most likely Duran (OPS+ of 123 in the last 3 years).
Once the Sox get an INF and move Duran, THAT is likely where the offensive hit takes places…