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I love the Agile Manifesto, but most organizations are not capable of "getting it"
I like your assessment because it "keeps it simple" and I think that is a big part of the Agile process, keep it simple and focused on delivering product. Whatever helps do that, keep. Whatever doesn't, throw it out.
It's "non-technical" project managers / leaders that are incapable of "leading" because they are non-technical in the first place ... creating a project that is being led by nobody ... while everybody hopes that everything will work out in the end because "someone" must be in charge ... somewhere.
The idea that "you are as good as the people working for you" only works if you can tell the difference between those that can and those that are simply posers. Most can't tell the difference because they don't know what questions to ask.
The Master said, 'Am I indeed possessed of knowledge? I am not knowing. But if a mean person, who appears quite empty-like, ask anything of me, I set it forth from one end to the other, and exhaust it.'
― Confucian Analects
I have to say that many years ago I did question the validity of the kid sister rule, on the grounds of my kid sister being a high-priced hooker in Las Vegas, but it appears the powers-to-be discounted my position on the issue.