Maybe, but the Sox need to determine the health of Pedroia and Nunez. It's not exactly improbable both have issues physically. And that leaves Holt at the starting 2B as well as backup IF and backup OF. That might be too much for one player. (Actually it is too much for one player.)
Also the "defensive 3b" thing is on Cora's wish list from some article I read at some point. I think he is well aware of the abilities of Devers and the existence of Holt and Nunez and still wanted this role filled.
A minor league deal to someone like Logan Forsythe might not be a bad idea. With soxprospects.com listing Tony Renda as the starting 2B in Pawtucket, these's a really good chance he would not be taking precious playing time from a developing prospect.
The Sox did sign Esteban Quiroz for a reason at one point. And while they clearly viewed him as expendable this off-season, was that because they felt 2B was all shored up? Or because DD realyl wanted Colten Brewer, a pitcher he had tried to acquire on at least 2 previous occasions?
I think more of the latter, with the need for Brewer exceeding the need for Quiroz, but that doesn't mean Quiroz wan't needed.
And hey, we all probably though Brandon Phillips was a pointless signing last off-season, too...