Sunak has long been seen as a rising star and is the person in the Treasury who No. 10 preferred to deal with. Sunak will be helped by the new No. 10/No. 11 special adviser unit. Sunak is a Brexiteer who has good relations both with the Prime Minister and his team. One insider suggests that their relationship will be a friendly one similar to that of David Cameron and George Osborne. What’s clear is that today’s changes mean No. 10 has taken control.