Liz Truss is expected to offer her right-hand woman Thérèse Coffey with a senior role in her Cabinet as she begins her new role.
Currently serving as the Secretary of State for Work and Pensions, Ms Coffey, 50, has a close friendship with Truss, with one colleague dubbing them "ying and yang."
The pair may have suprised some with their close friendship - Liz Truss a keen Thatcherite with a colourful personal life splashed across the papers, while Catholic Thérèse has been described as a team player on the left of the Tory party. But the Telegraph claims Truss, 47, has formed a formidable alliance with her fellow MP, and is hoping to offer her a senior role.
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With many speculating she could become the next health secretary, there is even discussions on whether Thérèse Coffey could become the deputy Prime Minister.
She attended her first Cabinet meeting in September 2019 after being appointed work and pensions secretary by Boris Johnson.
She shared her delight at attending the meeting with Truss, writing: "I was delighted to attend my first Cabinet meeting with my mate @trussliz showing me the ropes," alongside a photo of the duo.
The pair both attended Oxford University, but didn't cross paths there, as they were several years apart. They are thought to have met as young Conservatives in the 1990s, where they would campaign together.
Both were elected as MPs under David Cameron in 2010 - with Ms Truss's South West Norfolk patch close to Ms Coffey's Suffolk Coastal constituency.
One source told the Telegraph : "A lot is made of Liz once being a Liberal Democrat but when she became a Tory, she met Thérèse pretty early on and they campaigned together. Thérèse is three years older, but they've always got on very well.
"It is an odd partnership because Thérèse is very Catholic and a 'wet' in the old sense of the word - very much a moderate. She's a team player whereas the only team Liz is on is Team Liz.
"She's much more of a loner whereas Thérèse is the social glue in the party - she brings people together. She's famous for loving karaoke and hosting nights for MPs and staff. But that's why it works. Liz needs her for her social skills. They are a good yin and yang."
The former Cabinet minister added: "Thérèse is a very good administrator. She's been at DWP for three years and no one's heard a squeak, which is a good sign. She's a very good foil for Liz."
Another MP added: "I've always thought it was a very interesting friendship, which until now they have both kept quite under wraps," said the colleague.
"On one hand they are both jolly women who enjoy a drink, but there is also a seriousness to Thérèse that Liz perhaps lacks. Thérèse is very serious and very Catholic, a calm head on wise shoulders. Liz is more of a disruptor whereas Thérèse is very much a details person. She's a scientist so she is very forensic and can pull a brief apart. It's quite a heady combination."
Speaking after Ms Truss's victory, Ms Coffey said: "I'm really excited and looking forward to taking office tomorrow and get on delivering (our) manifesto and getting growth and I'm really thrilled."
