I think at this point, they have boxed themselves into that position since they've used most of their cap space to acquire Kirk Hinrich and Yi Jianlian. They can't make a play for any of the big names because in theory, they only have about $5 million to $6 million to spend on a free agent. Plus, they really want to let these young guys get an opportunity to perform and develop, similar to what happened in the second half of the season. So, you're right, there are no chances to sign a guy like Carlos Boozer or David Lee.
When guys like Amir Johnson and Darko Milicic are pulling down big checks, you have to give the Wizards credit for taking a wait-and-see approach. They don't want to waste all of their remaining money on some overpriced guys.
Since they've committed to the youth movement and don't want to make any long-term mistakes, this is a good strategy to follow right now. I've heard about waiting for Carmelo Anthony, but I'm not sure if he really wants to return near his home to play for the Wizards. I also have a hard time seeing him pass on that $65 million extension with Denver. That's too much money to leave on the table when there is a new collective bargaining agreement coming after this season.