From BA:
He can play second or third base capably, and he can even fill in at shortstop in an emergency. Durbin is 5-foot-7 and his value offensively is largely tied to his small strike zone, his excellent plate discipline and above-average bat control. He is extremely difficult to strike out and if a pitcher makes a mistake, he can pull it for extra bases. Fenway Park’s Green Monster should be a nice match for Durbin, as his extra-base juice is almost entirely to the pull side.
How he fits for the Red Sox will be an interesting discussion. With Marcelo Mayer also ready to contribute and Trevor Story set at shortstop, Durbin could slide to second base, or the Red Sox could move Mayer primarily to second base and let Durbin serve as the Alex Bregman replacement at third.