For others, such as Philip Green, business is still their number one passion. However, 10 years ago, Green was busy honing his empire-building skills. At Tesco, Terry Leahy had only just been made deputy managing director, but was already being tipped for bigger things.
While other big names, such as Sir Richard Greenbury (pictured), Tim Daniels and Dino Adriano may have stepped back from the cutting edge of business life, they still have strong views on the retail market of today - and how many of their old businesses are being run.
Check out Retail Week's special report, Where Are They Now? in tomorrow's issue for more, or click here to see the article online.