Actually, what I have read is that the turnover will be more cosmetic than substantive. Maybe that is wrong but I doubt it. I think the big turnover, is when the place has elections next January.
Well, it seems to me that with the Iraqis commanding their own army, directing their own oil industry, and sending their own ambassadors to other nations, that is pretty substantive. The structure of the interim government is being set up by consulting every ethnic group and tribe in the country. Members will be announced in a few days.
They will be a fully sovereign nation. This was a big point for the Iraqis, and it is not cosmetic.