At this point, it looks like they will be looking to upgrade at the shooting guard and small forward positions. Jordan Crawford is a high-volume scorer, but his value is mostly as a bench player. If the Wizards hope to improve with the draft, they will need to draft someone to complement Chris Singleton at the small forward position or a polished two-guard.
While there are a number of great players who will be available when the Wizards pick, they should target Harrison Barnes with their pick.
Barnes is the perfect balance to the defensive minded Singleton, as he is a pure scorer who can create his own shot. As John Wall continues to develop into a better point guard, he needs a pure shooter beside him to convert on his assist attempts. While Crawford and the newly-traded Nick Young hoisted up shots whenever they touched the ball, Barnes has a smart enough basketball IQ to know when to put up a shot and when to swing it to another open shooter.
With the emergence of Trevor Booker at the power forward, and the upgrade of Nene at the center spot means they can concentrate on developing their backcourt in the next draft.