If I'm Boston I dangle the pick out there. Let the Lakers get nervous enough that someone will trade up to get Ball. Then offer the 1 to them for Randle or Russell and the 2nd pick. If they bite you can then take Jackson or Tatum at 2 like you need to anyway.
The Lakers have no reason to be afraid of someone trading up to get Ball. Reason being that they know they can get Fultz, Fox or Jackson with the next pick, and they can potentially be better than Ball. They're not gonna be duped into making a silly trade.