There are lots of challenges for the Chancellor on wednesday but demonstrating that the Government is still committed to the Northern Powerhouse is a key one.. What ever you think about Hinckley, HS2 and Heathrow , none can even vaguely be described as benefiting the North in the short term. Communities need demonstrations of projects with spades in the ground now that will be finished soon. If not the " Britain that works for everyone " will sound a bit hollow.