Files scattered across computers, multiple versions of the same document, shared access that does not work: digital disorder slows work down and creates mistakes.
What you can do yourself
Define a simple folder structure and document it. Choose one reference place for each type of document. Cloud tools solve many sharing issues when configured properly.
When it goes beyond that
Different habits across several collaborators, differentiated access rights, synchronization between sites, migration from an old system.
Real case
Association in Pont-Saint-Esprit with five volunteers working from their own machines. Duplicate documents everywhere, regular version loss. Shared Drive set up with clear structure and rights. No lost document since.
We structure things so the team stops wasting time looking for what already exists.