By Arj Singh
Make sense of politics. Sign up to the during the general election, but he is not being as widely tipped for the sack from his Commons leader post as you might expect.
Baroness Nicky Morgan is also definitely on the way out of her culture secretary job, having confirmed as much last week.
So who’s going to replace them?
Trevelyan is certain to be promoted to the cabinet and No.10 sources have indicated that Suella Braverman and Gillian Keegan will complete a trio of women in line for promotions, although the latter two may come in below the top level.
Oliver Dowden and Alok Sharma will also be promoted.
Away from the dead certs, Steve Barclay looks likely to return after he led successful negotiations with Brussels but saw his Brexit secretary role scrapped on EU exit day.
Barclay has been tipped as a potential replacement for Villiers at Defra, but a number of other ministers appear to want the job.
Chief whip Mark Spencer, who has a farming business, is thought to be one of those pushing for the job, while Chris Pincher might replace him in turn as Johnson’s head of party discipline.
Justice minister Lucy Frazer has been tipped for promotion and is a potential candidate for Cox’s job.
The Telegraph reported that Chloe Smith was in line for a “minister for the union” job while Nusrat Ghani, already a transport minister, could land the new HS2 minister role.
Victoria Atkins, Helen Whateley and Kwasi Kwarteng have also been mentioned as potential promotion candidates.
Johnson also needs to find someone to run the COP26 climate summit in Glasgow after sacking previous president Claire Perry O’Neill.
Michael Gove has been mentioned as a candidate, but will he really take a job rejected by David Cameron and William Hague?
Zac Goldsmith might be a better bet, while Gove could get a beefed up role in the next stage of Brexit trade talks.
Rishi Sunak is almost constantly tipped for big things but is now widely expected to stay in his chief secretary to the Treasury job.
What about lower down the ranks?
Johnson will attempt to create a pipeline for female talent to reach the cabinet by ensuring a 50-50 gender balance at the most junior ministerial level – parliamentary under secretary of state.
He will also ensure that at least 60% of the so-called “bag carrier” PPS non-ministerial jobs are held by female MPs, and will promote those from the 2017 and 2019 intakes to make a dramatic increase from the current 18%.
A No.10 source said: “The prime minister wants this reshuffle to set the foundations for government now and in the future.
“He wants to promote a generation of talent that will be promoted further in the coming years.
“He will reward those MPs who have worked hard to deliver on this government’s priorities to level up the whole country and deliver the change people voted for last year.”