Which of the ones is NOT a core philosophy of Six sigma? Group of answer choices Think in terms of key organizational processes and customer requirements with a clear focus on overall strategic objectives. Focus on high-level executive sponsors. Initiative from front line employees to undertake cultural change. Emphasize defects per million opportunities in all organizational functions. Provide incentives and accountability. Provide extensive training followed by undertaking of projects. Create qualified process improvement experts. Set stretch objectives for improvement. All of the above