They also have the 3rd/10th pick of this years draft. Take a look at their payroll, they have more than enough to sign two stars. They can also trade Thaddeus or I don't know if they can amnesty him. Draft Wiggins, Parker, or Embiid. I don't know about Joel's injuries but let's just imagine if it wasn't too serious.
I mean obviously you'd have to do some work finding some other pieces but could you see this team being the next "OKC" or better? They certainly have the money, the picks, and the city to make it happen. Sixers have a very great basketball fanbase as well. I just didn't see anyone mentioning them at all as serious contenders. The front office have got to be ecstatic.