The Sox knew he was not going to stay at 3b and eventually move to first when he signed his contract, which was why their first offer resembled the extension Matt Olson had just signed with Atlanta.
No one in the organization thought of signing him to that deal because he played a great 3b, or even an acceptable 3b. They signed him because he was an elite hitter and because Bogaerts and Betts left for very little. Moving to 1b appeared to always be a Sox goal, but Devers refused to accept it. The Sox weren’t asking him to become a great 3b; they were asking him to be the same hitter that he had always been, but as a 1b, like many players before him had done…