The former Foreign Secretary would save billions of pounds by reviewing more than seven departments in Government, The Daily Telegraph reported. Mr Johnson has previously said he would like to merge the Department for International Development and the Foreign Office. Former Brexit secretary Dominic Raab estimated £1billion could be saved in the merge.
Mr Johnson’s team is looking to abolish or merge the departments for Justice, Business, Culture, International Trade, Work and Pensions, Transport, and Brexit.
Mr Raab, Andrea Leadsom, Chris Heaton-Harris, Liz Truss and Priti Patel, who back Mr Johnson’s campaign, are all in favour of the departments being cut, the paper revealed.
Advocates believe £8billion worth of savings could be made.
Mrs Leadsom told The Daily Telegraph: “I’m certainly of the view that we need to merge some departments and we need fewer people in Cabinet.
“There is a case for slimming down Whitehall but we can’t do that until we have left the EU and have a chance to review the way the Government works.”
Ms Patel added: “The Cabinet needs to be smaller. The Whitehall landscape has ballooned and we should be in favour of decentralisation, thinking about how we can drive efficiency and outcomes. The current Whitehall set-up encourages institutionalised groupthink instead.”
The Department for International Trade is deemed necessary by many of Mr Johnson’s supporters.
One MP who is helping with Mr Johnson’s campaign said: “There are three good reasons for cutting the number of departments – you would have fewer people trying to find ways to spend public money, you would have fewer internecine fights between departments and you would have fewer people trying to find ways of imposing regulations.
“On top of that you could also cut the wage bill by employing fewer civil servants.”
However, Mr Johnson is reluctant to make any mergers until after Brexit is delivered.
Changing Cabinet beforehand would reduce his ability to use the jobs as motivation from backers, the paper reported.
His backers believe departments should be cut in half from 25 down to 12.