"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."
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How does military experience translate in the corporate world? Just ask these top execs.