Ross Lydall: Tory reshuffle - and a mini one from the SNP too

David Cameron's reshuffle of the Tory shadow cabinet has just been announced. The big winner, other than Ken Clarke, is Chris Grayling. After dogged efforts on the transport and, latterly, work and pensions briefs, he becomes shadow Home Secretary.
Dominic Grieve moves from shadowing the Home Office to being shadow Justice Secretary. Tory spin doctors deny this is a demotion by claiming that Jack Straw, the Justice Secretary, is one of the few Labour big beasts and, as such, needs a capable shadow.
The main loser is Alan Duncan, who becomes shadow Leader of the House. If he follows the style of Theresa May, this simply involves being rude to Harriet Harman for five minutes every Thursday after she announces the following week's parliamentary business. Nothing wrong in that, but it does little to raise one's profile.
Unsprprisingly, Mr Cameron has been unable to find a seat for David Davis. He was not impressed last summer when his then shadow Home Secretary quit in protest at the "erosion of civil liberties", which divered attention from Gordon Brown's troubles. Expect Mr Davis only to reappear from the subs bench after the first ministerial resignation of a Tory government. He may have a long time to wait.
Meanwhile, the SNP has also conducted a tiny reshuffle of its own. Mike Weir, the party's business, energy and climate change spokesman, is to take a seat on the new energy and climate change select committee, which keeps an eye on Climate Change Secretary Ed Miliband and his fledgling department.
As a result, Mr Weir has surrendured his place on the business and enterprise committee, which is the only formal mechanism for MPs to question Business Secretary Lord Mandelson.
SNP sources say the change reflects Mr Weir's interest in energy, nuclear power and climate change issues, and the fact that he sat on the climate change bill committee. It also marks something of a victory for the SNP to secure a seat on the new climate change committee, as small parties tend to lose out at Westminster.
But it would appear to risk leaving the party's seven MPs a bit light on the big issue of the day, the economy, as they are not represented on the Treasury select committee either. This is the vehicle through which Labour MP John McFall, as its chairman, has found himself in constant demand from the media. The SNP are not normally seen missing a PR opportunity and, yes, the party's Westminster finance spokesman Stewart Hosie is prolific, but this appears a rare false move in these troubled times.