the mavs GM has a relationship with AD and loves him. They've already said they didn't shop him around outside of one team a few weeks ago (likely the bucks and giannis imo.) The only logical conclusion is they didn't like luka as a person, were sick of his conditioning etc, and just decided to get a guy the current GM likes. There's no way you can say AD was the best guy on the table when 27 teams didnt even get to bid