I think it would take at least a package of Rondo, Sullinger or Olynyk, and picks to get either Cousins or Drummond here. Even then I'm not sure Detroit or Sacramento would bite. In my opinion, if Dumars were willing to give up Monroe or Drummond for Rondo, the trade would have already gone down.
Picking up a center in the draft seems more reasonable. However, I think there's a very good chance we nab a top 5 pick, which would be too high to take Embiid, Austin etc. Also, Embiid is about as raw as prospects come. Rondo will be on the wrong side of 30 by the time Embiid is an impact player.
I agree that Embiid is raw in that he has such limited basketball experience, but barring a sub par season at Kansas, top 5 is not outside the realm of possibility. I think the current discussion is sleeping on the fact that Jabari Parker is very likely to not come out this year.
So assuming he doesn't. The top 4 is looking like Wiggins, Randle, Exum (assuming he declares) and Marcus Smart. After them is when you start seeing tier 2 players such as Gary Harris, Andrew Harrison, Glenn Robinson III, Wayne Seldin, Dario Saric, Hezonja and of those, there is no one I would rather take than Embiid especially given our depth at guard.
Could he take time to develop? Sure, but what is the alternative? Are any of the players I just mentioned going to start over Bradley, Rondo or Green? Meanwhile Embiid has a legitimate chance to develop into a starter quality true center on a rookie scale contract. We could still sign Gortat for instance and wait for Embiid to develop. But at the end of the day in Danny I trust. If he likes one of the other player you'll hear no gripe from me.