Explain how and why Theranos failed, focusing on the product, the leadership of Elizabeth Holmes (CEO), and Sunny Balwani (COO). Was the product or management at fault? Analyze the requirements of the question or task. Cover the main point, omitting irrelevant detail. Include material from your own research. Comment on the subject and describe the treatment of it. Balance ideas and arguments with evidence and examples. Provide a conclusion that sums up the arguments and considers the implications. Write in a detailed, balanced, and objective manner.