What kind of problem is this?
Dave Snowden's Cynefin framework sorts problems by how cause and effect behave. Agile shines in the complex domain.
Clear
Sense, Categorise, Respond
Best practice. e.g. A standard password reset.
Complicated
Sense, Analyse, Respond
Expert analysis. e.g. Network capacity planning.
Complex
Probe, Sense, Respond
Small experiments. e.g. A new product for SMEs.
Chaotic
Act, Sense, Respond
Stabilise first. e.g. A major outage.
Source: The Cynefin Co: About the Cynefin Framework ↗
Match the method to the problem. Agile for complex.