Tome the whole "trade Rondo" debate comes down to:
1. How much you like or dislike Rondo
2. How much you value Rondo
3. How soon you think the Celtics will wait in the rebuild
The third option, to me, is the most interesting. If you are going complete rebuild in the LB33 scenario, Danny looks to be not contending for 5 years or so minimum. Simply put, a total rebuild with youth, from the ground up takes minimum 5 years and even then it depends on whether the young talent you get can turn into top5-10 in the league talent in 2-3 years.
But, there is always the trade assets and build with Rondo option that to me looks like it can happen before the 2015-16 season begins. Two great drafts, some smart fiscal moves and letting salaries expire and the C's could be looking to add two players around Rondo's age to Rondo in sign and trades or free agency or regular trades and then contract extensions.
All those 2016, 2017 and 2018 draft picks could be very useful in getting players in S&Ts and trades with current contracts. Adding two of the following players to Rondo while keeping the this years draft picks and a player or so still on the roster makes for a great possible future: Kevin Love, Roy Hibbert, Marc Gasol, LaMarcus Aldridge, Chris Bosh, Carmelo Anthony, DeAndre jordan, Klay Thompson.