In 1998, Patty McCord joined a new company called Netflix. Her title was chief talent officer. And over the next ten years as Netflix grew (and grew), she and CEO Reed Hastings built a new kind of workplace. They threw out all the usual rules -- no more expense authorization forms or vacation requests -- and focused on creating a culture of excellence. But that culture of excellence didn’t come only through hiring the right people. Patty had to get good at firing, too.