Special committees make people feel good. "Oh, the guy who is responsible and should hang for this can't be bothered to clean up his mess. We'll appoint someone who can focus exclusively on this problem and meet your needs, Citizen." They are just a PR stunt while the rank and file do their jobs.
I will say the whole "czar" thing is outrageous. "Czar" apparently means "entitled, politically-connected asshole who brings nothing to the table, but will charge us a small mint for his services." On some levels the US is no different, or better, than every other government in history. The Romans, Greeks, Feudal Japan, the Nazis (yes, I went there), penal colonies, Victorian England, the Byzantines, Stalin's USSR, the Aztec, Carthage, various dynasties in China, etc.