It's been proven that women in senior leadership positions provide positive outcomes for the company above and beyond what an all-male executive team can provide. So why are there so few female executives in the banking and tech industries? "The first lady of Wall Street," Sallie Krawcheck, sits down with Reshma Saujani to weigh in on the power of networks, getting more women to invest in female businesses and the best worst thing that has ever happened to her.