Philly would want more and we'd need at least one of RJ James and Marcus to prove they can shoot the ball at a much better rate than they have. That or RJ or James would have to prove they are ready to play big minutes for a playoff squad.
This.
Philly would definitely want more. They're not trading their second-best player right now for our starting SG who has gone 2-20 from downtown this month. AB is better than his stats this month, but his slumps are horrible and he's in the middle of one right now. Poor timing.
Similarly, I don't think Philly is giving up Noel for nothing less than a ransom. Seriously. There may be more stock in Embiid and they may know that Okafor is better than Noel, but they also know Noel has even more potential. Would be a great Center for us.
You'd need to find a way to send them AB, Lee, and Sully at least. They'd clear space with Lee this summer, I believe Sullinger would be a RFA for them, and they have AB for at least 2-3 years. Even then, the Celtics still "win" that trade. Coangelo knows better and would likely demand a pick.