By most accounts Sheryl Sandberg is handling most of the traditional CEO duties. Zuck has the benefit of being a founder CEO, with an experienced exec in Sandberg to help. Any issues Facebook faces, won't be because Zuck is in over his head.
The problem that Zuck (and Facebook at large) face is that there's a rift between expectations (100 Billion+ valuation) vs reality (it's a profitable, but much smaller business). Facebook needs to either change their belief (or expectations) or reality (somehow morph into a 100 Billion+ company). Neither is easy to do, but now that Facebook is a public company, they've at least got a chance. Market forces can help guide them to a realistic valuation, and given enough time as a profitable but lower valued company, it's possible they'll reset their expectations to something more realistic. Or they could finally pull the rabbit out of the hat and become a 100+ billion dollar company.
The problem that Zuck (and Facebook at large) face is that there's a rift between expectations (100 Billion+ valuation) vs reality (it's a profitable, but much smaller business). Facebook needs to either change their belief (or expectations) or reality (somehow morph into a 100 Billion+ company). Neither is easy to do, but now that Facebook is a public company, they've at least got a chance. Market forces can help guide them to a realistic valuation, and given enough time as a profitable but lower valued company, it's possible they'll reset their expectations to something more realistic. Or they could finally pull the rabbit out of the hat and become a 100+ billion dollar company.