Previous occupation: Chief financial officer, Tom's of Maine
Age at retirement: 58
"Retirees want to stay intellectually challenged," says Brad Lawson of YourEncore, an organization that connects highly skilled retirees with Fortune 500 companies that need help with short-term projects. "They want to continue to leverage their expertise."Davey Scoon teaches managerial accounting each fall at Tufts School of Medicine and chairs the audit committee of two publicly traded companies. "If I didn't have a reason to stay up on financial accounting, I wouldn't be happy," he says. "Being with people who are working on exciting businesses makes life interesting."