Emotional attachments often lead people to overstate the ability and performance of people close to them. Duke Snider, the great Brooklyn Dodger center fielder, was my first sports hero. I thought he was the greatest. He was excellent, but he was only the third best center fielder in New York, after Mantle and Mays (or Mays and Mantle). Coming to grips with the incontrovertible statistical evidence on the relative performance of one's heroes is part of growing up. It's the same in health care: viewing performance through rose-tinted glasses can be harmful to one's health.