I think the Sixers would be nuts to trade for Embiid.
Put better fitting pieces around him. Consider moving Simmons but keep Embiid as the foundation.
What about the health factor though? Guy's knees were worn down by the playoffs last season, he's missed two full seasons and large chunks of the other 3+, and already seems a bit less mobile and explosive at just 25. Hard to say where he'll be at 28.
Harden's probably not the answer, mind you, but durability's gotta be a consideration.
Its definitely a concern & consideration. I just think he's such a unique force & weapon when healthy that you try & do everything you can as an organization to try to keep him health. Load management, conditioning, etc..
He's not even 26 yet. I think given the roster structure, you still try to build inside/out with him. I think it'd be easier to find a complementary piece for what they need by moving Simmons rather than Embiid.
Obviously, health is the huge concern, though. That's an organizational call.