I could see Mudiay at 2, with Philly skipping on Okafor and thus him falling to the Knicks. But Towns would have to go # 1. Unless they trade back, which I think is actually possible cause I think they like Okafor, Minny will either take Towns or Okafor.
If it's Towns, LA could certainly take Mudiay. Or even Russell. And since they didn't get the #1 pick, which I think would've put them in a spot where they almost had to take one, I can't see Philly taking another center. I guess if anyone would take a guy like Okafor even though you have Embiid and Noel who already don't fit together with the purpose of trading one or two and extract major trade assets , it's Hinkie. But they have to start trying at some point. If all that happens, Okafor could certainly land with the Knicks, which would be huge for them. That kid is ready to come in and make an impact right away.
WCS at 15 though? I really can't imagine that happens. I'll be really surprised if he falls out of the top 10. If he does, or even close to it, Ainge would almost certainly find a way to trade up at least a few spots and grab him. And he should, I'm not a huge WCS guy, but he certainly looks like an excellent defensive big at the very least.
To be honest, I think Ainge is trying hard to trade up because if he can get a guy like Johnson or WCS that's gonna come in and make an impact right away, it's a selling point. Let's say Aldridge really is considering Boston, when he meets with Ainge, DA will be able to say "Look, not only do we have a war chest of trade assets and a proven track record of building a contender, but I already started". Man, WCS would look good next to him.