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Another MP to walk out of Downing Street with a bigger job than when he entered is Oliver Dowden.

He went into No 10 as a Cabinet Office minister, but has now been appointed as the secretary of state for digital, culture, media and sport.

Mr Dowden takes over the post from Baroness Morgan.

She held the role when she was an MP, but kept the job when she lost her seat and was elevated to the House of Lords.

Baroness Morgan had always said she expected it to be a short term solution. Now Mr Dowden will take on the role.

Sajid Javid served only 204 days as chancellor - which means he served fewer days in office than all but one chancellor since World War II.

The longest serving chancellor was Gordon Brown, who was in the role from 1997 to 2007 during the Labour government.

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Liz Truss has kept her roles in government, and it is a fairly full portfolio...

Her main job remains as secretary of state for international trade.

But along with that she is also the president of the Board of Trade, and minister for women and equalities.

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Anne-Marie Trevelyan entered No 10 as the minister for the Armed Forces.

She has now left with a bigger role - that of secretary of state for international development.

Ms Trevelyan replaces Alok Sharma, who has also moved up the ranks to become business secretary.

Former Brexit minister Suella Braverman has gone into Number 10.

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Matt Hancock has left No 10 in the same job as he entered with, which can't be said for all the cabinet.

He will remain as the secretary of state for health and social care - a role he has held since July 2018.

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The drama is far from over in Downing Street as more ministers have been seen arriving to speak to their boss.

Armed forces minister Anne-Marie Trevelyan and Health Secretary Matt Hancock have both gone into No 10, while International Trade Secretary Liz Truss was seen coming through the back gates.

Cabinet Office minister Oliver Dowden has also been spotted making his entrance.

BBC's political editor Laura Kuenssberg calls the chancellor's resignation "an unexpected turn".

Former Tory MP David Gauke spent much of his government career in the Treasury and warns those in Whitehall to remember the importance of its independence.

Writing on Twitter amidst rumours No 10 will be "pulling the strings" next door, he says the "credibility of the chancellor and Treasury matters to this country" and the top dog at No 11 "has to be strong enough to say no to the PM".

Later, Mr Gauke took to the airwaves, telling BBC Radio 5 Live the new incumbent at the Treasury was "pretty much unsackable" after the drama of his entrance to the job.

David Shukman
Science editor, BBC News

The announcement that Alok Sharma will be business secretary and minister in charge of the COP26 climate summit did not specifically mention that he would be "president" of that crucial event in November.

That’s a role left vacant by the sacking of Claire Perry O’Neill and many were speculating about who would fill it.

The Downing Street press office has now confirmed to me that Mr Sharma will be president of the event, and that puts him right at the centre of some very difficult international negotiations.

The countries of the world are meant to bring forward improved plans for cutting emissions of the gases heating the planet and very few have done this so far.

Back in May 2019 Mr Sharma wrote that there was “an unstoppable momentum” towards more ambitious global action – the coming months will reveal whether he can help deliver that.

Claire O'Neill had been put in charge of this year's international climate change conference in Glasgow. She had been an energy minister under Theresa May but is no longer an MP.

But last week she was removed from the post, with No 10 saying it wanted a minister in charge of the conference, known as COP26.

Simon Jack
BBC Business Editor

It is no secret that Sajid Javid had become known as "chancellor in name only" - or "chino" - but he had won a couple of key battles.

He wanted to be an old fashioned Conservative chancellor, who actually looked after day-to-day spending and tried to balance the books in a fiscally prudent way.

But that is not what No 10 is looking to do.

The pound has risen quite significantly today after his resignation on the basis people think the spending taps can be turned on even more strongly during next month's budget.

They think there is going to be more fiscal stimulus, more spending and perhaps fewer of the tax cuts that Sajid Javid didn't want to bring in.

I was also talking to one of Sajid Javid's former colleagues at Deutsche Bank earlier who said his resignation was "classic Sajid".

They said he was a tough boss, but he was very loyal to his staff, so it is not a surprise he found it a humiliation too far to sack all of them.

Other people are also saying you do not fire every one of someone's advisory team and expect them not to resign.

And in fact, Rishi Sunak came in very quickly, looking as the PM would put it "oven-ready" to go if Sajid Javid did in fact resign.

The BBC's Nick Robinson spoke to new Chancellor Rishi Sunak in October last year on his podcast, Political Thinking.

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A source closed to the now-former chancellor Sajid Javid has been telling the Press Association that "no self-respecting minister" could accept the conditions being imposed on him by No 10 to keep his job.

The source says Mr Javid was told by the PM "he had to fire all his special advisers and replace them with No 10 special advisers to make it one team".

They added: "The chancellor said no self-respecting minister would accept those terms."

Vicki Young
Chief Political Correspondent

Yesterday we were all thinking this reshuffle could be a bit on the boring side - it hasn't turned out like that.

Sajid Javid partly resigned in loyalty to his advisers but it is about power as well.

Number 10 wanted to control the message and Sajid Javid realised this was taking away his influence.

In his place is Rishi Sunak - this is a meteoric rise for him.

He has a lot of work to do because we are only four weeks away from a budget.

And now we have words (albeit few) from the new chancellor.

Speaking to reporters outside the Treasury, Rishi Sunak says he is "delighted to be appointed" and there is "lots to get on with".

He isn't wrong, as the government has promised a budget next month.

As Mr Sunak walks into his new office, a reporter shouts: "Are you going to be the prime minister's puppet?"

Perhaps unsurprisingly, the new chancellor doesn't respond.

Rishi Sunak has come out of No 10 after getting his big promotion.

Reporters shout to the new chancellor for a reaction.

However, he doesn't acknowledge them and strides with purpose away from Downing Street.

BBC Politics Live
BBC2's lunchtime political programme

Labour MP Bell Ribeiro-Addy says the way the prime minister has treated Sajid Javid "seems quite disrepectful".

"I'm also worried about the number of women being shoved out," she says.

And she expresses concern about changes in the housing department: "We will be on our tenth housing minister when housing is one of the biggest issues facing the country."