This is a good move for Al Jefferson. He goes to a team that always seems to put a quality product on the floor, with an All Star PG.
It's an interesting move for the Jazz. It pretty much means they won't match the Blazers' offer to Wesley Matthews (which is a good thing). It also means Al will start at Center, since Okur and Millsap are at the PF. I think that is out of position for Al, but the Jazz probably figured that they were able to get an ALl Star quality player for a good deal, so they jumped at the oppty.