Montgomery is overly reliant on his (strong) arm at 3B. He needs to start charging more balls or he's going to get a lot of bad hops and he'll start throwing wild. Can't play 3B from 10 feet behind the bag all the time.
That's the problem with Vargas right now, that ball has so much spin on it because he's flying open too soon. Pulled it foul. Should have been a double to right center.
imo his floor is pretty much everyday regular 2-3 WAR catcher. He does a lot of things right. Ceiling if he gains any power is borderline ASG catcher every year.
Not trying to say you're wrong, because the Sox probably do think this way, but trying to win night to night instead of prioritizing development is asinine.
There's a 50% chance he even makes it to MLB in that time frame. He's a total project as I said Jose Iglesias is the comp and the Tigers got a few good years out of him as a slap hitting all D SS. But that's 90th percentile outcome for this kid.