[hinkley]

Scrum doesn’t prescribe enough techniques to be successful. Somewhere, maybe in an interview, I heard someone say that they never saw a successful Scrum team save that they were doing half of XP too.

So far I have not found an exception to this. Thing is that means everyone is doing Scrumbut (we do Scrum, but...) Which means you have to relearn or reargue with every single team about the exact same concerns. It’s gotten old.

[stephenhuey]

Scrum does not discourage adding additional tools as needed. It tries to provide a minimal framework and nothing more.