this applies to many other instances of systems being adopted and appearing to succeed even though what's really behind the success is something else, but becau

this applies to many other instances of systems being adopted and appearing to succeed even though what's really behind the success is something else, but because we don't have the control we associate the system with the success, like how when it's reported that a successful person eats chocolate or wears red; they were successful and they happened to wear red and it was only coincidence. Humans are always looking for causes and will associate spurious things together by default. I bet you if Agile were removed from all teams tomorrow they'd still deliver.