The document discusses difficulties with transitioning to a Lean culture from a traditional corporate culture. It notes that culture change will be the most difficult obstacle to success, and if an organization only talks about Lean initiatives but does not fully implement them, the initiatives will fail. Traditional metrics can also cause conflicts with Lean methods by focusing on short-term goals rather than continuous improvement. True Lean success requires long-term commitment from all levels of an organization, especially executive management, and a shift toward valuing people and problem-solving over rigid productivity targets.