Orlando probably wouldnt do that.
I think it would take Rondo + #6 + Wallace's bad contract for #4 and Jameer Nelson's expiring contract.
Why for Boston: They get a young potential franchise player to build around with the #4 pick. They dump Wallace's bad contract. They build around Exum, Sully, Oly and utilize the cap space to keep acquiring draft picks while we develop the children. If Rondo is fleeing, they might as well.
Why for Orlando: They get a former all-star PG who still has some years left in the tank... losing out on Exum would stink, but they could land another young big with #6. They have the cap space to absorb Rondo and Wallace's contract.
Dumb idea all-around, but I'm having trouble imagining Orlando giving up a potential star for #6 and #17... I think Rondo + #6 at least gets their attention.
You know better than to just throw Rondo in there as an afterthought. You just like to get people going. If we are giving up Rondo, then there is no reason to include any other draft picks - Rondo for #4 and Nelson's expiring. Orlando should be thrilled with that.
As for the proposed deal - sure. If Orlando really was as hot on Smart as we've heard all along, I don't see any reason why they wouldn't drop down a couple of slots to get the player they want while acquiring another mid-draft pick in a deep draft. Exum is clearly the #4 prospect - if it were for Embiid, Wiggins, Parker, this would not be a possibility.
For Boston, we get a top prospect at a position of need who should play very well with Rondo. Losing #17 hurts, but it's okay, we have a number of other young players and upcoming picks.