Similar to how Golden State traded for Andrew Bogut knowing he wouldn't be healthy anytime soon but saw the opportunity to stash away future talent.
To trade for Rondo, a team has to be in that unique position of not being in a rush to win now, but have enough upside to give a volatile player like Rondo, something to look forward to.
To me that team seems to be Detroit. Calderon is great but hes not a long term answer as a starter.
Heres a 3-Team Trade where Boston COMPLETELY blows it up.
Throw in some picks and what not, and Bostons books are wiped clean. Is that selling too low on Rondo? Or would you welcome a rebuild with cap space around those prospects.
Would Detroit want Rondo is the bigger question tho.