Google has produced some of Silicon Valley’s top female leaders, some of whom have graced Fortune’s list of Most Powerful Women in Business over the past several years. There’s a catch: many of them don’t stay at Google. Francoise Casals Brougher, who left Google for payment startup Square, said “Google has always wanted to have a major impact on the world. Having us go to other companies is an extension of that.” Read more: http://for.tn/1Ka19gy