Two trades to make this offseason
1- Trade with OKC
to Boston: Kendrick Perkins, Perry Jones III
to OKC: Brandon Bass, Joel Anthony
why for OKC: they get a good bench player in Bass to backup Ibaka, and help them to compete in the Wild West. Joel Anthony is almost the same player Perk is nowadays, but a lot cheaper. They give up PJ3, but get the best player in the trade in Bass.
why for Boston: get minutes for Sully&Kelly, take on another young prospect in PJ3, and get Perk (and his terrible contract) back.
2. Trade with Toronto
to Boston: Landry Fields, worst of NYK/DEN 2016 first round picks.
to Toronto: Bogans, Chris Johnson, Chris Babb
why for Toronto: get rid of Landry Fields, waive Bogans and Babb to save money/capspace and either waive or keep Chris Johnson to replace Fields at 1/6 of his salary.
why for Boston: another first round pick to use in further trades, cut some salary (with those two trades they save 1M combined), and another expiring contract to use come February.
Roster after the trades:
Rondo/Smart/Pressey
Bradley/Thornton/Young
Green/Wallace/Fields
Sully/Kelly/PJ3
Perk/Zeller/Fav
Perk+Thornton+Fields combine for 23M+ in expirings to use in trades (or simply let them expire next summer).
Then, at the February trade deadline you can use some of those expirings, some picks and some young player to try to get Marc Gasol:
Thornton+Fields+Faverani+LAC 2015 1st+Sixers 2015 1st+Bos 2016 1st+NYK 2016 1st could get you Marc Gasol off of Chris Wallace's hands. And you'd still have BKN's picks, young prospects and financial flexibility in 2015 and 2016.