Liberal Democrat Michael Moore has been replaced as Scottish Secretary by the party's chief whip Alistair Carmichael.
This is not going to be a Conservative Cabinet reshuffle, but among the junior ranks there will be some tinkering.
Chloe Smith was just 27 when elected MP in Norwich and became David Cameron's youngest minister when she was promoted two years later.
The Conservative minister for the disabled Esther McVey has just walked into Downing Street.
She said there was "no news yet."
Fisheries minister Richard Benyon will leave his position and return to the backbenches, the Conservative MP said.
On back benches! 3 and half really fun years with much achieved. Really appreciate time working with outstanding Ministers and Officials
Don Foster has been appointed as Comptroller of HM Household (Lib Dem Chief Whip). #reshuffle
Inside Number 10, I am told, the reshuffle phone calls are still being made.
That suggests either a) a long list of changes, or b) some rejections.
There will be no more Cabinet changes for the Liberal Democrats, I am told.
And David Cameron will be sticking with his Cabinet team too.
Nick Clegg said "other experience" was required in the run-up to the independence referendum as he sacked Michael Moore from his post as Scottish secretary.
– Letter from Nick Clegg to Michael Moore
As we discussed when we spoke on Friday, I believe we now need to draw on different experience in the final year running up to the referendum itself and I am keen that just as we have benefited from your formidable skills over the past three years that we take advantage of other experience within our ranks during this period.
Mr Moore replied:
– Letter from Michael Moore to Nick Clegg
This has been, and will continue to be, a hugely important time in Scottish politics and that has made it a challenging and rewarding time to be Secretary of State for Scotland.
In leaving the Scotland Office I am pleased that Alistair will be succeeding me. As a good friend and long-time colleague, I believe he will do a superb job. I wish him all the best.
The Prime Minister has said he will confirm ministerial appointments on Twitter - the first being Alistair Carmichael as the new Scottish Secretary:
Alistair Carmichael has been appointed as Secretary of State for Scotland. #reshuffle
Liberal Democrat Michael Moore has been replaced as Scottish Secretary by the party's chief whip Alistair Carmichael, Press Association sources confirmed.
Liberal Democrat chief whip Alistair Carmichael will replace Michael Moore as Scottish Secretary, BBC political reporter Tim Reid said.
Scot Secretary Michael Moore has been sacked in a libDem reshuffle. He is to be replaced by the LibDem chief whip Alistair Carmichael.