Fragile is the evil twin of Agile. It is far worse than Waterfall. It's chaotic! Managers feel out of control, they say "I don't like this! I have no idea what the developers are wasting time on". Nothing gets finished, nothing is tested, and nothing at all gets delivered. There is not even the illusion of progress that you get with Waterfall.
Great post about adopting Agile over Waterfall. Agile isn't an overnight thing. It's a process of continual adoption.

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