Hawks: The hawks want to trade out of this draft so they a trade a pick they dont want for a really valuable pick next year in a loaded draft class. They also want to make the playoffs which i believe oladipo in the starting lineup will allow them to do.
Pacers: The pacers trade into the draft and get cam reddish from the hawks who could be a future star. They do take on wiggins contract which sucks.
Warriors: Warriors trade for a centre who helps them win now while also getting off of wiggins terrible contract. They also get doug who will be awesome for gsw.