I think a great deal of Facebook's recent, and coming, success is not just that Sheryl Sandberg was brought on, but when she was brought on. They allude to the

I think a great deal of Facebook's recent, and coming, success is not just that Sheryl Sandberg was brought on, but when she was brought on. They allude to the rapid growth that Facebook has seen lately, but Mark Zuckerberg may not have been able to effectively handle that growth without her. She joined on at the crucially perfect time, which is a credit to both of them.