I think our biggest problem with the trade market was this: Other teams see all of our extra assets, and figure that Danny has more "currency" to spend, then the other teams in the trade market. Therefore they want some extra juice from him. It is human nature to think this way. Danny, on the other hand, is thinking, "hey, just because I have a bigger bank account, I don't want to pay a premium. I should be able to buy assets for the same (equivalent) price as the guy who has fewer assets.
I really think this is the prime (not exclusive, but prime) source for getting a trade done on mutually acceptable terms.
The accusations made against Ainge by insecure GM's is a lot of garbage.