Kerr should be getting a personal call from David Stern over this one. It's one thing to question a trade, it's another to come right out and say that the Spurs broke the rules. Besides slandering Holt, Popovich, Presti, and Barry, he is questioning the validity of the league. And that is almost as dangerous as the referee scandal.
Any team that really wanted Barry could have claimed him off waivers, just for paying his contract. He could have belonged to the Suns, with no possibility of going back to the Spurs. If Cur is upset that Barry isn't wearing a Suns jersey, he has only himself to blame.
Once Barry cleared waivers, he was free to sign with any team that made him an offer. If you had a choice between the Spurs' organization, and playing for a couple of pricks like Kerr and D'Antoni, which would you choose? (And if it's a question of getting another ring, getting rid of Marion and bring in Shaq didn't help things either.) Why would Cur think his winning personality was going to be enough to bring Barry to the Suns, after the way he talked about the Spurs over the last couple of years?
This latest outburst could make it harder for Kerr to get players in the future too. He courted Barry, but when Barry didn't sign he publicly accused him of cheating. I think it's important to call a spade a spade. The back-door deal that Kerr says took place would have required Barry to participate in the collusion. Why would any player accept a personal recruiting visit from Kerr after this?