I was just mucking around in Dynasty mode with the Thunder. I found a way to change them from talented youngsters into serious championship contenders.
- Start a new Dynasty mode with OKC.
- Trade with Houston: Jeff Green + Nick Collison + Nenad Krstic <-> Tracy McGrady (and a 2nd round pick if you want it)
- Sign some guys on <$1m contracts for 6 years. So you have enough players to be able to release some next season.
- Sim the season. (Or play it if you like)
- Release McGrady, Thomas, Sefolosha, Ollie, Livingston during the next off-season.
You now have $35m cap room to sign whoever is available from the wealth of free agents.
With that much cap space you should easily be able to sign any 2 of:
LeBron James, Dwyane Wade, Yao Ming, Dirk Nowitzki, Tim Duncan, Paul Pierce, Amare Stoudemire, Chris Bosh, Brandon Roy, Joe Johnson, Tracy McGrady.
Of course the odds that both LeBron and Wade don't re-sign with their teams are pretty slim. I've only ever seen Wade not re-sign once.
And obviously they all won't be available to sign and the cpu teams won't wait for you to sign a couple of players before having a go themselves.
I've had a few goes at this and gotten Bosh and Stoudemire, Bosh and Roy, Wade and Bosh.
And don't forget that you still have Durant + Westbrook on the roster.
Also, I'm aware that this isn't exactly in the spirit of the game. And I don't play all my Dynasties like this either.
This was just a 'lets see if it'll work' type of thing.