Former Lehman Brothers chief financial officer Erin Callan disappeared from the public eye after the bank's demise in 2008.
Now she's living a much quieter life in Florida with her new husband.
However, she's returned to the spotlight to weigh in on the work/life balance debate reignited by the release of Facebook executive Sheryl Sandberg's book, "Lean In."
Callan wrote an op-ed in The New York Times and appeared in an interview of "Rock Center."
She has been warning other women not to lean in the way she did because she missed out on important relationships in her life and having children of her own.
For a brief moment in time, though, Callan was one of the most powerful women on Wall Street.
Erin Marie Callan grew up middle class in Queens, New York.
Callan's father was a police officer and her mother was a homemaker. She was one of three daughters.
Source: "Too Big To Fail"
She was competitive from a very young age. Callan was even one of the city's top gymnasts.
When Callan was 13 years-old, she was featured in the New York Times as one of the top gymnasts in the city.
In high school, the football players would come in the gym to watch her practice, a coach told Fortune magazine.
She was so intense and competitive that she would practice the sport until her hands would bleed.
She excelled academically graduating magna cum laude from Harvard.
See the rest of the story at Business Insider
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