Some of the speficis from Law
Mayer - the power and hard contact have continued, even knowing he is having issues with sliders down and in. Still looks like a plus defender at SS. While you should not expect him in Boston this year, it's not out of the question either.
Teel - not a ton of plus tools but solid or better across the board, he could play in Boston now
Anthony - Pitchers know he has trouble with offspeed stuff and are crushing him with it. But he is also just 20 in AA - so there is plenty of time to figure it out.
Montgomery - if he had two healthy ankles, the Sox don't get him. Looks like a true switch hitter. Solid defense in RF, and more growth potential than you'd expect from a 21 year old SEC player.
Campbell - arguably the biggest breakout of the minors in MLB. He is NOT going to maintain a .466 BABIP, but the hand-eye coordination is legit and he has been able to get to more game power than he showed in college.