It is true a new CEO could potentially improve things, but it shouldn't be taken for granted. Disclosure, I'm generally a Facebook skeptic, but I don't think it can be denied that bringing in another CEO who focuses on money, money, money could end up crashing Facebook ten times faster than Zuckerburg could. There are a whole lot of very appealing money-making answers that boil down to eating the seed corn, at wildly varying levels of subtlety. (In fact the source of my skepticism is whether there is any way to make money that doesn't fit this description, but who knows?)