Head of benefits programs from 2006 until she leaves Wal-Mart this month, Dillman has overseen some of the most progressive healthcare initiatives undertaken by any U.S. employer, or vendor. An IT specialist, not a healthcare nob, Dillman debuted Wal-Mart's PHR program, expanded benefits to 1.2 million Wal-Mart associates and dependents, and created the $3-employee prescription benefit that would inspire #4 Simon's $4 Drug Plan. The retail clinics, rolled-out on her watch, haven't been universally successful. Wal-Mart still leases space to 37 low-cost clinic operators like Med Point Express and Quick Health, but other vendors performed poorly or collapsed with recession. Wal-Mart retooled. Last year set goal of 400 clinics by 2010, this time branded under its own name and run by local hospitals or RediClinic. (Now in Simon's portfolio). Sits on the Robert Wood Johnson Foundation Commission to Build a Healthier America, and the Centers for Disease Control & Prevention (CDC) Advisory Committee.

"One of the issues in healthcare is that price is not always a factor in how people make their choices. But that is what Wal-Mart is about. We value price. There is great lesson for us in this. It's that when you frame healthcare in such a way that price is a factor for the customer, they will get involved and they’ll make the right choices."