The media has widely reported that Bernard Valcourt has been named ACOA minister. However, that is not so. He has been named a minister of state only; which means he is not a full minister, but a junior minister supporting a more senior minister.
The Order-in-Council designating him a minister of state is now online. It clarifies that he is indeed not the minister of ACOA but "a Minister of State ... to assist ... the Minister for the purposes of the Atlantic Canada Opportunities Agency Act in the carrying out of that Minister’s responsibilities."
So, who is that minister? Well, as I can find no Order-in-Council terminating Keith Ashfield's appointment to that job, it is either still Ashfield or PCO hasn't yet updated it's database with all of the OICs from yesterday.
Inquiring minds want to know.
UPDATE: Confirmed, from watching CPAC's video-on-demand recording of the swearing-in, that Keith Ashfield remains the real ACOA minister, with Valcourt assisting him.