"But, and let me make the point very loud and clear, that will require a government that understands money; the nature of debt and the the indifference government can have to accumulating deficits if they are used to keep the economy going, as will be the requirement next year. Without that understanding, and if the government imposes its own cash flow demands on business next year as it faces a crisis not of its own making, then the government could make things very much worse. And that is what I fear will happen." Professor Richard Murphy.
http://www.taxresearch.org.uk/Blog/2018/07/18/the-coming-brexit-cash-flow-crisis/