I have noticed some discussions abroad that criticise Modern Monetary Theory (MMT) on the basis that none of the main proponents have ever actually worked on the operations desk of a central bank. This sort of criticism is in the realm of “you cannot know anything unless you do it” which if true would mean almost all of the knowledge base shared by humanity would be deemed meaningless jabber. It is clearly possible to form a very accurate view of the way the monetary system operates (including the way central banks and the commercial banks) interact without ever having worked in either. However, today, I review a publication from the Bank of International Settlements which dovetails perfectly with the understandings that MMT has provided. It provides a case for why we should abandon mainstream monetary textbooks from the perspective of those who work inside the central banking system.