I'll give you 1* and 2. I have serious doubts about 3 (recently) considering he's the CEO of many companies, is constantly flying to non work related locations

I'll give you 1* and 2. I have serious doubts about 3 (recently) considering he's the CEO of many companies, is constantly flying to non work related locations and tweet all the fucking time. Even if he is working extremely hard the output for any of the companies must be small, which given his track record on twitter might be the biggest benefit to his CEO career of all times. The key is #4, I think he managed to have incredible challenges at his other companies that brought it people who knows not only how to perform the job very well but to manage him very well. *I still have doubts about how much of his smarts is being smart or just sounding smart, he is certainly not dumb by any stretch.