I'm guessing there are two reason Danny made the trade.
1. He like a couple of other players as much or close to as much as Fultz. Probably Jackson and Tatum.
2. There is some impressive size at the top of next years draft which something we are lacking.
According to DraftExpress, 3 of the top 4 in next year's draft are:
Porter - 6'10', 7' wingspan
Ayton - 7'0", 7'5" wingspan
Bamba - 7'0", 7'9" wingspan
By getting the LA pick along with Brooklyn's pick, we have a very good shot at getting one of these guys.
Porter is a wing too, which makes his size quite intriguing. If all goes to plan, we could get TWO of those three, not to mention Doncic.
Risky, but also quite exciting if it all goes right.