Still, it is no bad thing if Mr Cameron's unilateral action - his "scrutiny committee" - starts a competition to be the most vigorous purger of wayward MPs.
More than a hundred newly-elected Conservative MPs will be arriving in London today at the start of a busy week following Boris Johnson's emphatic election victory.
Here's a BBC Science correspondent, Tom Feilden: It's time to get down to the serious business of scanning our MPs–one left and one right-wing to see if we can find any differences in the structure of their brains.