They need to know nothing of the history of the canals, they do need to have an understanding of what's going on on the canals right now - that isn't filtered through the lens of middle class moaning in the form of the outpourings of certain groups - to know how significant the issue of CMers is and what resources are needed to tackle them rather than say, shift a sunken boat, burnt out boat that's been sat in the cut for over a month. Other wise we'll have CRT wasting time trying to publish maps of places they have no legal authority to define, monitoring people who may not be causing any problems at all, restricting mooring to 48 hours in places it's not necessary and leaving sunken, burnt out boats sat in the cut for a month.