11 Leaders to Watch in 2011

1 of 11

Sheryl Sandberg COO, Facebook

While Mark Zuckerberg created the cultural phenomenon that is Facebook, Sandberg is largely responsible for making it a multi-billion dollar enterprise. The much-admired manager’s name is now floated as a possible candidate to succeed Timothy Geithner as Treasury Secretary. She’s former chief of staff at the Treasury Department under Bill Clinton and star economics student of mentor Larry Summers. Would she leave Facebook before it goes public? Surely she’s one to keep an eye on.