The document discusses issues that can arise with tag management systems. It notes that tag management promises independence from IT but often results in IT feeling kicked out of their role and distrusting marketing. It also promises ease of use for marketing executives but they typically get lost during setup and end up delegating the task. Finally, tag management promises that tagging can be done once and forgotten, but in reality data layers often break over time or do not meet reporting needs as site evolutions are not always followed by tag updates. The document provides solutions such as involving IT early on, strict tagging processes, training, and quality assurance testing.