I think a lot of the work an MP does is to do with individual cases where a person has a problem/ issue with a governmental process. Just as a house conveyancer doesn't need to live in the same town as you, neither does an MP. I emailed Selous and my current MP with various concerns and they've emailed responses. So, if there are a group of MPs for a region, under PR, then I would envision a range of specialist skills being offered by them and a constituent being directed to a particular MP, regardless of Party, to tackle those personal concerns.
The next major thing the MPs do is to do with running the country, introducing new laws, and tweaking older rules. All the MPs for a regíon, well all MPs, would be fair game to be lobbied about those.
The third area, has to do with local issues. And while there are many who think that's important this is where I have a slight problem. Would the regional MPs meet to carve up towns between themselves to adopt so they become area champions, or would some areas be left almost 'unserved'? Would they form a regional committee to meet with Town and/or County/UA councillors to thrash out priorities?
I'll leave it there for now.
