Brook Lopez is a great fit on Boston. He can spread the floor when needed but I'd rather have him mix it up for Offensive Rebounds and low post scoring. He is the guy who will guard the paint and matchup against the Steven Adams, Enes Kanter type players. He can score and split his minutes with the 1st and 2nd units like Tatum does. He plays the 1st 5 and Baynes or Theis come in for him. He then comes off the bench to play with the 2nd unit with hopefully Tyreke Evans, Morris, Rozier and Smart. Great mix of offense and defense. Love that unit.