There is no way that Detroit keeps both Josh Smith and Greg Monroe. With Monroe on the verge of getting a big payday, that would be WAY too much $$$ to tie up in one position. It's clear from last year that Drummond/Monroe/Smith doesn't work.
I'd take either, but prefer Smith.
Getting Smith would mean that we would be committed to adding and building with Rondo, and I prefer that. And, I believe that we could get Smith for cheap, given his contract and his bad fit. Wallace, Bogans and the Clips first and Philly's 1st/2 2nds would work and give us the rim protector that we need in Smith. Detroit saves a boatload of $$$ (about $20 mil on the difference in Wallace's and Smith's contracts alone, nevermind the Bogans $$$) and gives them a 1st and likely two seconds for their trouble, in addition to getting a 3 that they need in Wallace.
Getting Monroe would give us more flexibility to either build around Rondo or go young, and move Rondo.
If we got Smith, I could live with:
Rondo/Smart/Pressey
Bradley/Thornton/Smart/CJ
Green/Young/Babb
JSmith/KO
Zeller/Fav/?
We could then use Sully and picks to get a serviceable center.