Harrison Barnes, a nine-year NBA veteran who experienced the joy of winning a championship and the hardship of being on lottery teams, had a look of exasperation when he took the stage for his postgame news conference at Golden 1 Center on Tuesday. The Sacramento Kings had just been pummeled by the Minnesota Timberwolves, 134-114. It was a long day for the entire organization. Hours before the game, the team made a blockbuster trade sending guard Tyrese Haliburton, Buddy Hield and Tristan Thompson to the Indiana Pacers for a package including two-time All-Star Domantas Sabonis. It was a landma…