I didn't mean to sound critical. I don't really have any experience with large teams. Let me try to rephrase. A large team would probably imply a large codebas

I didn't mean to sound critical. I don't really have any experience with large teams. Let me try to rephrase. A large team would probably imply a large codebase, so are you aware of attempts to separate those two variables? For example it's interesting to me that attempts to do TDD on large codebases have met with success. Your response also raised another interesting question. TDD could be hard to scale with team size because of intrinsic issues or just the difficulty in 'infecting' a large group with it. I wonder which is larger part of the reason.