CPA2 was necessary because, although the rank and file had largely gone home, the infrastructure of the Iraqi army remained intact, and large numbers of middle-ranking and senior personnel actually believed that they were going to have a role in the new Iraq, and would continue to be paid.
CPA2 set them right on that score. Which was why so many armouries and depots were then unlocked and left open for any Tom, Dick or Omar to come and do a pick'n'mix. Clever move by the US, eh?
But Terry expects the world to be governed by QRs and seems to have spent his life filling forms, shining his trousers and crawling up the career ladder, and so can't comprehend what the situation is like for anyone who actually has to deal with reality in theatre. In a way he's typical of the sort of woodentops who arrive at Camberley fully expecting the world to run the way they want it to.
What is so galling is that the PSIs at Camberley soon disabuse them of that illusion, but once the woodentops get their tabs, the more ambitious ones realise that such attitudes don't do them any favours, so the lessons are conveniently forgotten.
The really clever ones end up disillusioned and leave. Which is all our loss.