A framed photo of the Larry O'Brien Trophy hangs in John Wall's locker. It was left there by its previous occupant, Antawn Jamison. The Wizards are a long way from being championship contenders, but Wall said he never considered taking the picture down. Washington closed out the 2011-12 season Thursday night against the Miami Heat, the odds-on favorite to win the NBA championship. But for the Wizards, it was another disappointing campaign, highlighted by a coaching change, trades and injuries, which culminated in their fourth straight losing season. While frustrating for some, rookie point guard Shelvin Mack found a silver lining in the dark clouds that have hovered over this team since it last qualified for the playoffs, the 2007-08 season. "It's been a great year for me, personally," Mack said. "The biggest thing is getting some experience out there on the court. I've been able to learn a lot. I know we've had a lot of ups and downs, but I look at it as a success."