Interesting perspective if your client is in an industry (for example public sector) with a legislated file plan, because delicate education will clash with forceful personalities, but at least you have the National Archives Act on your side. In the private sector, there is a mountain of legislation buried within other Acts which dictate things like retention frameworks etc. that can act as a hard stop in the RIM, so at least you have that. The challenge lies is in people's personal taxonomies based on their core processes, when these clash with other organisational processes. An example I have come up against is when the Sales and Marketing processes to manage buyer engagement meet Operational processes to manage the actual project. The most senior/influential person usually wins in setting up the IA, especially when companies have grown organically and document/records management don't align with real-life processes anymore. Once again, I have found that high-touch education and engagement with the clients at all levels is important so that they start at a point of consensus for adoption, as one of the ways to discourage people from "bending" the rules.