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You wait ages for a reshuffle and then three come along at once.

David Cameron, Nick Clegg and Ed Miliband have spent the day changing some of the faces in the cabinet and its shadow.

Most of those involved are household names only if you live with a political anorak, but many will be seen as significant at Westminster - and beyond.

The big loser is Michael Moore, replaced as Liberal Democrat Scottish secretary by Alistair Carmichael. He may have no executive powers but it's an important job in the run-up to next year's referendum on Scottish independence.

As the reports, Mr Carmichael is taking on a job . Six years ago, he said: "The Scotland, Wales and Northern Ireland offices should merge to create a department for nations and regions, with a full time seat at the cabinet table."

That was then party policy, tied to the Lib Dems' goal of a federal Britain. The party also wanted to abolish the Department for Business, Industry and Skills, which is also now headed by a Liberal Democrat.

If you're looking for a Welsh angle in today's reshuffles - and unless you've landed on this page by accident, you may well be - an Abercynon-born product of Mountain Ash Comprehensive School, , has been given a junior minister's job in the Department for Communities and Local Government, the latest in a growing line of Lib Dem MPs to sample coalition government.

Labour leader Ed Miliband has chosen to keep Owen Smith, often tipped for greater things, in the shadow Welsh Secretary's job. Mr Smith is "delighted" to be continuing in the role: "In Ed Miliband we have a strong and determined leader who is taking the fight to David Cameron and his out-of-touch government. Ed has put together a formidable team and in the remaining 20 months before the general election we'll be relentless in our efforts to expose the failure of the Tory-led government to tackle the cost of living crisis and to offer hope to the British people that there is an alternative."

That "formidable team" includes Caerphilly MP Wayne David, who moves from the shadow justice team to become one of two parliamentary private secretaries to the Labour leader. Sometimes dismissed as "bag-carriers", parliamentary private secretaries act as their boss's "eyes and ears" around Westminster, keeping them in touch with backbench opinion.

Mr David was "honoured" by his appointment, issuing a press release with the headline: "Wayne David appointed as Ed Miliband's right hand man".

The leader's new "right-hand man" is certainly on message: " I have known Ed Miliband for a number of years and I can honestly say that he is a man of strength, decency and principle. Labour is fast developing clear policies which offer hope to this country and my job is to help Ed get his message across".

A former Wales Office minister, Mr David has been a parliamentary private secretary before, at the Ministry of Defence.

He'll be hoping this spell as a PPS doesn't end with the downfall of a leader.