The Heat just do not have assets right now at least not potential assets. This means they have to trade a bunch of players that actually have already realized value. Herro is obviously the centerpiece of the trade and is from Wisconsin so he might actually stay. It gives a number of players under long term contract control. The Heat keep Bam and Wiggins and slot in Giannis becoming a contender once again. The Bucks just got burned again by a player not liking the market so they want long term contract control.