If Embiid falls to 4, it's because of his back. Then he probably falls to 6 because it's unlikely ORL and UTA would take Embiid in that scenario. They have other needs and other options. Aings OTOH would be the most likely guy to do that based on his current reputation and his relative job security (unless Celticblog posters can get him fired first).
Wiggins, Parker, and Exum would already be gone based on what I've read IF Embiid's sliding. In that case we'd be trading up for a slider needing surgery who will be out for part of his rookie season and who's coming our way anyway OR for a guy slotted to go 5-8 now.
Not going to happen.