Draft picks are fools gold- they eventually have to be turned into players, and those players can just as easily be Greg Odens, Thabeet and Shumperts. Just because a team has lots of picks, it doesn't mean they will become great players. Just because they have cap space, it doesn't mean they will land great players. 76ers have very little in real terms- Noels is looking promising, but that's just about it. They will struggle to sign any free agent, so they will be reliant on getting lucky with their picks. The drafted MCW, and then moved him because ehe sucks. They drafted Embiid and then had doubts due to his foot injury and work ethic.
They don't even have that many extra no 1 picks- the OKC one will likely be late 1st round, as will the Miami one. We drafted Tim Jr and Shumpert with late 1st's. Mavs drafted Larkin with the 18th.