I thought this was a really interesting speech by @michaelgove assets.publishing.service.gov.uk/government/upl…
Some parts in particular struck a chord with me, such as this 
I do wonder, though, why Gov is selective in its insistence on evaluation. Where are the Brexit impact assessments? Why the pretty systematic tendency to ridicule forecasts carried out by people with precisely the kinds of quantitative skills whose absence he seems to bemoan?
And on this, laying the blame at the feet of the civil service strikes me as a little disingenuous. Why would a talented economic modeller want to join the civil service now having seen how the findings of modelling have been treated in recent years?
