The PM has been told party management will be more difficult if she does not promote younger MPs

Theresa May is set to fire up to a quarter of her cabinet and wants to offer Boris Johnson a new role as she prepares to launch 2018 with a domestic policy blitz designed to convince voters she can do more than Brexit.

May has decided to hold a reshuffle in January to bring in younger MPs after concluding her government needs a new year reboot.

Patrick McLoughlin, the party chairman; Justine Greening, the education secretary; Greg Clark, the business secretary; Chris Grayling, the transport secretary; and Andrea Leadsom, the leader of the Commons, have all been tipped for the chop by May’s aides.

Sajid Javid, the communities secretary, is also vulnerable, but May’s determination to put housing at the heart of her domestic agenda