Number 3 is where my point lies in this thread, Onceler. If you note the complaint, but then in his opinion the same activity by another is just icing on his tasty cake...
I think you will find the Dems are more likely to oversee their own than the Republicans did. It is obvious that Dem pols don't march in lockstep with party line to the same degree as do GOP Congressmen. I think it is also a fact that those that call themselves Dems, Progressives, Independents, or whatever are more supportive of oversight and adherence and policing of existing regulations than are Republicans during a GOP administration
Regarding the czars, I'm not sure of the power given them, but I doubt that they have the power to override or bypass Congress on legislative issues. If that is the case, what are they if not merely advisors on specific issues or sounding boards for problems that have arisen in their area of expertise? Was it Obama that gave them the title of 'czars'? Who gave it that terminology? I suspect an invented "talking points" issue.
It's my belief that it is the total dearth of oversight and ignoring of regulation during the bush administration that led to the "czar" situation you are complaining about, if so, it just may be a good idea.
I think Byrd, rightfully, fired a shot across the President's bow to make sure the administration doesn't forget that there is now a Congress that will pursue oversight and that values its Consitutional duties.