Lucky: In a very evenly matched series, the weakest link I see in either team is your starting back court's defense. Your back court offense is obvious with Smith. Terry and Nash, but none have never been known for playing really any defense whatsoever.
Meanwhile, Washington, has a group of back court players that might not be as elite in some skills as your back court is but are a group of more real rounded players that can play both ways. If they can slow down your back court any, it looks like they should be able to do what they want on offense which would open space for Granger and Aldridge, two very under rated players who have come into their own as 2nd tier stars, IMO.