Plus, contrary to what others think I find Ben Simmons not "that" good, everyone acts like a super star but I think he is just a "good" player at max all-star level but not super star level.
Simmons is very good player, but not good fit with Philadelphia 76s, and their current roster. In general, I don;t think that Embiid and him are not good fit, and I don't see them winning NBA championship while playing together and having this type of players around them.
Same goes for Embiid, he would be even better with diferent type of players, 76s need more shooters to spread the floor and give Embiid more room. Hell, in that case maybe Even Simmons and Embiid would work together. But Philadelphia management decided to go different way.