This is an interesting question. Watching this team, seems pretty clear that our biggest need is another go to scorer. Fultz more than anyone fits that bill. Also reports (Scal, for example) that Danny really loves Fultz.
So say we get the 2nd pick in the draft. The team with the 1st pick is indifferent to choosing Fultz or another player (such as Ball). Reading Ford's latest draft speculation, several of the top teams in the draft (e.g. Lakers and Suns) rank Ball ahead of Fultz. But they also probably know that we want Fultz. So....
Danny calls them up and to see what they plan to do at 1. They say, well, we really like Fultz, but also like Ball. Danny says, "hey, what would it take for you not to draft Fultz?" (i.e., for us to swap picks).
If you were Danny, what would you be prepared to give up in this scenario? Try to be realistic here. Would you give up Crowder? Bradley? Rozier and a future 1st round pick? How much?