Cavs should take Wiggins and not think twice.
If I'm the Bucks I'm a bit nervous about taking Embiid at #2. He hasn't played publicly in months and isn't sharing his medical report so easily. If there are any questions, I could see the Bucks going with Parker. It's new ownership who probably doesn't want to blow a #2 pick when Parker and other talent are on the board. Embiid and Parker could be close enough with Parker being the safer pick.
Wiggins and Parker are off the board.
Sixers then have to decide if they want Embiid. Probably they take him, but if Vonleh is a versatile stretch-4 he could look attractive next to Noel. The Sixers also have to decide if Noel is a PF or a C. Exum is a lot like MCW, and they could go with it, but neither is a knock-down shooter at this stage. I think the Sixers wanted Wiggins or Parker (because they already have MCW and Noel), and Dr. J was pissed they didn't get into the top 2. If the Sixers are squeamish about Embiid, I could see them dangling this pick to Orl or the Jazz.
If the Sixers think Embiid is risky and take Exum, then Orlando has to ask if they want Embiid. If not, they might flip picks with the Jazz to draft Marcus Smart and pick up another asset. You look at how far Nerlens Noel slipped last year, and Embiid could potentially be available to us. Orlando could think Embiid is risky when they already have Vucevic.