Loughborough MP Nicky Morgan has been promoted to one of the most senior posts in Government - taking over from Michael Gove as Education Secretary.
Mrs Morgan's promotion has been announced by Prime Minister David Cameron on Twitter.
Mrs Morgan had been Financial Secretary to the Treasury and minister for women since April.
Now, as well as taking over responsibility for the Department of Education, she has had the equalities portfolio added to her brief.
Mr Gove has been appointed to the role of Commons chief whip.
Mrs Morgan was first elected in 2010 and her rise to the front bench has been rapid but she now faces the challenge of running a major Whitehall department while defending a majority of 3,744 in May's General Election.
Labour has identified Loughborough as a key target seat.
Mrs Morgan's Labour opponent Matthew O'Callaghan said: "What ever she says it is bound to take her away from Loughborough and the day-to-day needs and concerns of her constituents.
"There are lots of pitfalls in education.
"She takes over from one of the most divisive and unpopular secretaries of state ever who has left education in this country and in particular in Loughborough in a shambles.
"As a result of the policies she has supported, Loughborough University students are being straddled with massive debts for a system that is on the point of costing more to administer than it takes in fees.
"The Further Education sector is in a funding crisis resulting in Loughborough College having to hand out notices of potential redundancies.
"The privatisation of school education is continuing through the academy system, which is failing.
"Charnwood College, a prominent local school, is in the process of being taken over by an education business. There is a lot to sort out.
"It is quite clear she is now a career politician closely identified with the Conservative record on welfare which has added to the cost of living crisis.
The Mercury has attempted to contact Mrs Morgan but she has been been unavailable for comment.
In a statement released by The Department of Education she said: " I know that education can be the single greatest transformer of lives. It is also a crucial part of this government's long term plan.
"I look forward immensely to working alongside parents, teachers and schools to ensure we have world class schools and the skills that will get our young people great jobs.
"This government's reforms have already delivered huge benefits to pupils and families in the East Midlands and I hope very much to build on that."
News of Mrs Morgan's promotion follows the announcement two long-serving Conservative Leicestershire members of Parliament have left their ministerial posts in the latest reshuffle of the Government.
Rutland and Melton MP Alan Duncan has stepped down from his position as minister of state for international development.
South Leicestershire MP Andrew Robathan has left his job as a Northern Ireland minister which he has had since October.
Late last night Mr Duncan took to twitter saying: "Finishing as a Minister this eve by my own choice. Incredible 4 years at @DFID_UK - proud of all we have achieved. On to adventures new!"
Mr Duncan told the Leicester Mercury he was not sure what those adventures new might be.
He said: "I don't know. It was just a delphic comment. I'm going voluntarily and I've never been happier mate, never been happier.
"I've done 17 years on the front bench and I have had four years of very intense travel. When you are a front bencher you get trapped in your own brief a bit."
Mr Duncan confirmed he would be defending his seat in the general Election in May.
Mr Duncan, who has served as an MP since 1992, was appointed to the international development post in 2010 which has given him a remit covering the Middle East and Asia and relations with the United Nations and the EU.
Mr Robathan was also first elected in 1992 and served in the Coldstream Guards and SAS between 1974 and 1989 and also in the Gulf War in 1991.
In 2010, he became minister for defence personnel, welfare and veterans and took on and armed services role in 2012 before being moved to the Northern Ireland office.
Mr Robathan was among the first to congratulate Mrs Morgan on her new role but warned she had taken on a "very tough" job.
He said: "It will be very hard work but I am a great fan of Nicky Morgan and she will do a very good job. She is very able."
On his own departure from the Norther Ireland office he said: "I have had a good run and I have enjoyed myself. I spoke to the Prime Minister last month and there is a case to bring forward a bit of new blood. I am perfectly happy.
"It was mutually agreed. I am certainly not weeping into my coffee this morning."
He said he would now focus on defending his seat in May.