[bmm6o]

Sure, that's the easy answer. But some organizations have success with that methodology, so it's obviously not impossible to ship quality software with it. And many of those organizations used something else and switched to it, so they must think it's superior their previous methodology. Or really, I should be talking about their implementations of methodologies, since reality doesn't match the platonic ideal even in the best case; in the worst case it might be unrecognizable.

So do you disagree that there are a lot of ways to implement "agile", some of which will be more successful than others? Or do you think that there are some organizations for which agile (even well-implemented) will never be better than methodology X? (where X = ?)

Yes, it's easy to run into No True Scotsman and "ur doin it rong", but we're not going to advance the state by pointing out that it's hard to draw correct meaningful generalizations (we know that already).