Doesn't mention Conway's Law or the Scientific Method, Continuous Feedback or Composition.
Scaling an organization uses the same techniques as creating scalable (computer) systems. Systems are systems.
https://en.wikipedia.org/wiki/Conway%27s_law
If your systems relies on "hiring the best engineers", it is operating Open Loop. All Open Loop systems will suffer catastrophic failure at some point.
Grit is a dog whistle for grind. You can be tough and resilient and flexible w/o being gritty.