Can't I just get all the tips, manuals and instructions? Then we are done, aren't we?

That is what we would like to see. But every organisation is different in services, hardware, software and very different in, for example, the use of a specific service, Microsoft Teams or OneDrive. Also, things like company culture and rules or legislation give a human or sometimes organisational difference which, without attention/engagement, cannot be properly managed with IT. Profit in this respect is sometimes more valuable than an average software package or a simple manual.