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. Create qualified process improvement experts. Set stretch objectives for improvement. Provide incentives and accountability. Focus on high-level executive sponsors. Provide extensive training followed by undertaking of projects. All of the above. Initiative from front line employees to undertake cultural change. Emphasize defects per million opportunities in all organizational functions