Areas where the Federal government has had some success:
EPA - yes, maybe using means that weren't always efficient, but stuff is cleaner now
OSHA - well, improvement, I think, but the paperwork is ridiculous
IRS? - My dealings with them sorted out eventually in my favor, they at least were polite with me
SS & Medicare - pretty useful though obviously in financial straits
Areas where success has been less obvious:
DoEd
DoEnergy - I have a particular bone about the fuel ethanol thing
Military procurement
Patent and Trademark Office - what a mess
HUD
Interior
..... the list is pretty long here.