Rondo for McLemore and the rights to the #8 works for me. We'd be guaranteed of getting a player in the tier that includes Gordon, Smart, and Vonleh, which is right before another drop off in the draft. Having the 6, 8, and 17 picks also allows Ainge with the opportunity of packaging picks to move up in the draft.
This is obviously dependent on a Love trade not coming to pass.
I would not do this.
Whoever is available at #8 has a fairly low chance of developing in to a star (which Rondo already is) and and McLemore so far has done nothing at all to impress me (12/4/1 per 36 on 38% FG).
If I were Rondo I would be downright insulted if Boston made that deal. To be honest I wouldn't even give up Sully + #17 for that.
There are a few teams out there who are stuck with tough decisions to make about star players who don't really fit in - Carmello, Love, Monroe, etc.
Carmello and Love are probably a long shot, but the Pistons really need to let Monroe go so they can move Smith to his natural PF spot. They may well take Rondo AND Wallace if it's the best offer they get. They could veteran experience and they could use a proper PG, plus everybody knows Rondo and Josh Smith are close friends. I think there's a good chance they would do this deal, and Boston could do a lot worse than Greg Monroe and a big trade exception in return for Rondo.
Plus Monroe is only 24 years old and a very skilled offensive player so he's probably more valuable to us than Rondo in our current rebuilding movement. He's also 6'11", 250lbs and has a 7'2" wingspan so he gives us legit size for the center spot. A frontcourt rotation of Sully+Olynyk+Monroe may not be the greatest in rim protection, but it sure would be a handful for opposing defenses to handle.