Why do you say the QE has achieved nothing?
As I recall the cut in VAT was widely condemed at the time as pointless because retailers would not take much account of it in setting prices and people wouldn't change their buying habits much based on what was much of a price change.
IMHO the issue is consumer confidence - people don't buy when they're worried about their jobs and their diminishing disposable income.
Therefore government spending is best directed at projects that boost people's employment.
This colour Government doesn't like direct spending on public employees - well OK fair enough.
There is an excellent scheme for providing government assurances for infrastructure projects that can't otherwise get finance.
Sounds just what the doctor ordered until you see the hoops to jump through
http://www.bbc.co.uk/news/business-18880354
Good idea - take off the brakes on it!