I had great success using scrum in central government. It freed us from the whole "get a document approved by lots of external parties before you can do anythi

I had great success using scrum in central government. It freed us from the whole "get a document approved by lots of external parties before you can do anything" mentality. . It helped that because it was such a different process, they largely left us alone. They loved the regular retrospectives. They were awed to see feedback from the previous retrospective made real by the next one. By the end we delivered more for less and it actually did what the stakeholders cared about (not what people thought they wanted when we started and didn't understand it).