Montgomery has been out for so long that it’s easy to forget just how good he was for the Yankees during his rookie campaign in 2017. He went 9-7 with a 3.86 ERA and 144 K’s in 155.1 IP and finished sixth in the AL Rookie of the Year voting.
If he returns in the coming weeks, which Boone says is possible, he probably won’t be built up enough to return as a starter but you can never have too much pitching help so there’s definitely a role for him to fill. He can go to the bullpen and pitch in long relief or he can be a left-handed specialist.