Virginia M. Rometty
Virginia M. Rometty
Company: IBM
Fortune 500 rank: 19

"You always have to do something that puts you in a zone you don't know," Rometty advised the audience at the 2011 Fortune Most Powerful Women Summit , less than a month before she was elected as the successor to IBM's then-CEO Sam Palmisano. "Someone once told me growth and comfort do not coexist. And I think it's a really good thing to remember."


By Colleen Leahey, reporter - Last updated July 18 2012: 2:08 PM ET