RACI is most valuable in situations with some complexity, multiple people involved, cross-functional dependencies, or higher stakes if something is missed. A product launch, a software development project, a marketing campaign with several teams involved, an organisational restructuring, these are all situations where RACI earns its place.

Not every task needs a RACI matrix. If you are the only person doing something, or if a task is simple enough to fit on a basic to-do list, building a full RACI matrix adds unnecessary process. The goal is always clarity, not bureaucracy. If a simple checklist already gives everyone the clarity they need, that is the right tool for that job.

A good rule of thumb: if a task involves more than two or three people, has dependencies between people, or has meaningfully high stakes if something is dropped, RACI is worth the few minutes it takes to set up.

Go back to the opening story. If that project had spent fifteen minutes at the start mapping out who was Responsible for legal sign-off, who was Accountable for the overall launch, who needed to be Consulted along the way, and who simply needed to be Informed, the entire delay, and the customer complaint that followed, would likely never have happened. That is the promise of RACI. Not more process for its own sake, but exactly enough structure to prevent the kind of confusion that quietly derails good work.