This is not how Apple works, unlike FB or Google people stay on their teams for a long, long time. Based on my knowledge of the company, it's pretty heavily to

This is not how Apple works, unlike FB or Google people stay on their teams for a long, long time. Based on my knowledge of the company, it's pretty heavily top-down led. That would be my guess on why it's able to execute against its strategy. But I am not sure it's particularly better at it than other tech giants. My guess for the main reason Apple is so successful is its strategy, not their execution of it: Sell expensive top-class products (even if that means being late to market), and establish strongly walled ecosystems between those products.