The article mentions Mark Zuckerberg only in passing but it is worth noting that Mark Zuckerberg and Sheryl Sandberg are another visionary-CEO + world-class-exe

The article mentions Mark Zuckerberg only in passing but it is worth noting that Mark Zuckerberg and Sheryl Sandberg are another visionary-CEO + world-class-executor "dynamic duo" in Silicon Valley. Who will replace Mark Zuckerberg after his departure? If it's Sheryl Sandberg, the same Steve Ballmer / Tim Cook scenario will repeat itself and we can look forward to future articles like "Why Sheryl Sandberg is the next Tim Cook and why she still has her job at Facebook".