If you could trade number three and Smart for Noel and Okafor then flip Okafor to Chicago for Butler, it might make some sense for both sides, as long as they feel confident in Embiid. Something like the following:
Boston: Noel, Okafor
Philly: Smart, #3 Pick
Boston: Butler, # 14
Chicago: Crowder, Okafor, Young
We'd still have room to add KD and Horford in this situation. So would that convince them enough to sign here? That'd leave us with the following roster:
PG: IT, Rozier
SG: Butler, Bradley
SF: Durant, Turner (resigned after signing KD and Horford)
PF: Horford, Mickey
C: Noel, Olynyk
You'd also have picks 14, 16, and 23 to use to upgrade the roster or trade for future assets.