Josh Marshall is having problems with it, too. Here:
the Brahimi plan was supposed to push aside members of the IGC for key posts in the new government. And, more pointedly, not one article I've seen has the same set of facts about just what happened.
Here. And here. And here. And here.
Good old Josh, he's really trying to make sense of it. Or at least follow the nonsense of it. He hasn't said anything yet about Allawi's bogus intelligence claims, though.
....but hey, do what you want....you will anyway.