I don't get why the Rockets honestly let Parsons walk away. He was a huge part of their success in the post season. If Harden had stepped up in the first two games of the playoffs without shooting nothing but bricks, Parsons/Howard would be the only players on the team willing a comeback. Same goes for Jeremy Lin, and its pretty messed up that they treated him the way they did...
I do think the Harden trade wasn't gifted, I do think if anything Morey probably sold Presti on the Harden deal, by being a great negotiator. Morey and Ainge are the leagues best GM's, and its not surprising to see their still ranked pretty favorably throughout the league.
I was a little negative or sad on Ainge for not being able to pull in Love, but maybe its just not meant to be.
Either way Parsons will probably have a great year, and provide the 3 point shooting and defense while being a team player is invaluable. The Mavericks had one of the worst defenses in the league, and in most games the Mavs were able to win games purely through outscoring other teams.