1. KPIs, for Beast they are CTR, AVD, AVP, will look different if you are a startup. I am willing to bet he knows his metrics better than >95% of startup founders. Because he is literally hacking/being judged by an algorithm, his KPIs will matter more and can be closely dissected. Startups aren't that easy in that sense, but KPIs still matter.
2. Hiring only A-players. Bloated teams kill startups.
3. Building value > making money
4. Rewarding employees who make value for the business and think like founders/equity owners, not employees.
5. Understanding that some videos only his team can do, and actively exploiting and widening that gap.
The management/communication stuff is mostly about working on set/dealing with physical scale. You need a lot more hands dealing with logistics, which requires hardline communication and management. In startups, the team is usually really lean and technical, so management becomes more straightforward.
I am also getting some bad culture vibes from the PDF and really dislike the writing style. I think it's important not to micromanage to the extent he is--it's necessary, maybe, for his business. Not for startups. Interesting perspective, reminds me of a chef de cuisine in a cutthroat 90s kitchen. The dishes (videos) have to be perfect, they require a lot of prep and a lot of hands, and you have to consistently pump them out.
I think it's pretty clear he has figured out how to "master" YouTube better than anyone else ever has by a very wide margin.
So if he doesn't micromanage, how can he teach people how to do something that nobody else has ever figured out how to do?
It's not like people will show up and be good at what he wants. There is no school for this, no "Here's my past experience". None of that matters at his level of success.