He stole the idea and concept of the twins - sure he took it further along but the strategy etc was stolen.
Then during the high-growth phase of FB, he relied on a team of individuals who cared nothing but running scientific experiments with large amounts of data - again nothing he did there.
The IG and Whatsapp Acquisitions? I mean when you have all that insider knowledge (years of deep knowledge of the product space), it was an inevitable ploy to acquire a monopoly at whatever price - serving billions of people at scale was always going to lead to tremendous cash flows.
He brought in Sheryl to run the show w.r.t forming the business model and operations.
totallygeeky•50m ago