My approach is that you have to earn the respect of people you work with.
You can manage 50 people through the strength of your personality and lack of sleep. You can touch them all in a week and make sure they're all pointed in the right direction.
I've been good at product entrepreneuring.
I think you're defined as a company by what you choose to do and what you choose not to do.
Don't lose sight of user delight.
The first rule (of investing) for me is don't have rules. You find one amazing investment and that's all that matters. If you pick the right body of water, you might not need a boat.