It doesn't really matter who leaves. These are people who were part of the first scaling out of single platform to 2 billion people. Their skill was in buildin

It doesn't really matter who leaves. These are people who were part of the first scaling out of single platform to 2 billion people. Their skill was in building out such a network and keeping it running. The skills required to do that well, came from people with business and compsci backgrounds. That work is done. Now what matters is who joins. And what happens next to such a network. Compsci and biz people won't make a difference to vision. The next phase will be driven by ideas from social sciene, ecology, history, psychology, economics, politics, religion etc. People who have a deep understanding of the value of human networks and what they can do, will drive the next chapter of where Facebook goes.