Here is my new tweak for the plan for next year (obviously, its very fluid, but this is what I would try to do as of now):
1. Resign KG. If he will sign for 1 year, great, but I think the sweet spot is going to be more like 2 years/$24 million. I think he will be offered more elsewhere, but that will be a serious enough offer to get him to stay in Boston.
2. Resign Jeff Green to a 1 year deal. Probably going to cost something similar to his original qualifying offer, but they have been laying the groundwork all year, so hopefully he chooses the C's as his venue to prove he deserves a big contract.
3. Make a 3-way sign and trade deal, sending Ray to Chicago, Asik to Atlanta, and Bass also to Atlanta (I like Bass, but much like Davis, he is going to become dramatically overpaid this summer, and I don't want it coming from the C's), and sending Josh Smith to Boston. I am not a huge Smith fan, but on a 1 year deal, where you are not giving up a ton of future assets, its a no brainer.
4. Draft a couple good players.
5. Use the MLE to sign a young wing or center who might be undervalued (wing is MUCH more likely, since Centers are so overpriced). Ideally try to sell a guy like Mayo on a 2-3 year "prove it" contract, like Charlotte did with Gerald Wallace.
6. Use the LLE and vet minimum contracts to fill out the roster with guys on 1 year deals.
So, essentially, here is the Core of the team next year:
PG: Rondo, Bradley
SG: Mayo(?)
SF: Pierce, Green
PF: Smith, Johnson
C: KG
Plus draft picks, signings, etc.
That is likely not a championship team, but they will be fun to watch. And more importantly, they will remain very flexible going forward. Smith and Green will be expiring contracts, KG and Pierce could both be cut after the year for only ~$4+ million cap hits each, if they want more cap space the following summer...and they also will likely be pretty tradable if they don't fall off a cliff. And you also put together some young guys who are going to get the chance to prove to you whether they are keepers or not, while still maintaining a strong veterance presence and culture around them.