Terrible deal for the Bulls. The chance of Noah getting more than that next summer is slim. There are not going to be a ton of teams with cap space, and the new CBA could make that deal an absolute albatross. They also make it nearly impossible to trade him now, basically locking them in to the roster they have for the foreseeable future.
It looks to me like the Bulls panicked for some reason, and perhaps Noah was grumbling after the trade rumors (which may have even been leaked by Noah's agent to boost his value a bit, and give them leverage). They had another month to negotiate, and I have to imagine the longer they waited and played hard ball, the more the price would have gone down, since Noah had little to gain by holding out for more money, given the state of the CBA. If they waited until the end of October, like Ainge did with Rondo, I would be shocked if Noah's agent didn't blink, and they would have gotten him for about $10 million (or more) less.
To me, this showed why Danny is so much better than 90% of the GM's in this league. He understands that you can actually negotiate. You don't have to just give the player everything they want...particularly when you hold their RFA status the next summer.
The tough thing about this is that it may mean the end of Perk's run in Boston. There is no way Danny is going anywhere near that kind of money for Perk, and now I can't see Perk's agent not asking for something at least close to that range. If Perk comes back in January or so, and his agent starts throwing out Noah like numbers when they talk extension, don't be surprised to see Perks name a LOT around the trade deadline. Danny plays hardball, and Perk might be getting priced out of Boston.