There was nothing wrong in SCRUM originally. When it appeared it was a breath of fresh air: minimal, explainable in 5 minutes, just accumulation of common sens

There was nothing wrong in SCRUM originally. When it appeared it was a breath of fresh air: minimal, explainable in 5 minutes, just accumulation of common sense. You don't even need to declare "We're working in SCRUM" - the important feature is possibility to do "SCRUM in stealth". SCRUM went wrong when it became "process", when SCRUM masters/evangelists appeared. They started to teach "right SCRUM practices" and SCRUM became a bureaucratic ritual not distinguishable from RUP.