If I may, Jonathan, I'll add to what you said there.
In Britain the Auditor General actually sits almost as a member of the committee; they'd be sitting right over there. The Auditor General's office also prepares the list of proposed questions for the committee and prepares the reports of the committee.
We have a different relationship in Canada, which I think is correct, that whatever preparation for questioning is done by the staff of the committee. Reports are drafted by the staff of the committee.
I think that area should be strengthened. Many of the reports of the Auditor General are not of direct interest to the committee and they are not investigated. On the other hand, say the committee wanted to get into this area of deputy ministers and seagull missions; they might want to commission a report of their own.
It seems to me that's the area where the interests of the committee and the Auditor General can diverge.