One of the book's claims, which I found shocking at first, was that in a large organization, executives don't set strategy. Not even the CEO sets strategy. Why? Because it's an illusion to believe you can enforce a strategy.
Employees, including executives that report to you, follow company values first and foremost. (This is by definition construction. If they don't, you fired them, see above.) Of course, they're human, so as part of that, they'll be looking out for themselves, their friends, and the people in their organization.
Maybe one of your organizational values is "do what your boss says." That's a thing you can do, and you can enforce. It works. The military works like that supposedly (although I have no experience with the military). But command-and-control is not very efficient for knowledge workers, because of the fundamental problem that for any given situation, the people who know the most about it are the people at the bottom, not the people at the top.
If the people at the bottom can't agree what to do, then great! That's why we have a hierarchy. Use the decision process above until the answer is obvious.
But if the person at the top is trying to "set a strategy" by making operational decisions, those decisions will be based on insufficient facts, because there are simply far too many facts for one person. That means, if your decisions should be based on facts, you will make worse decisions than your subordinates. That's scary.
So what, then? A company just drifts in the void, with no strategy?
Not exactly. It's harder than that. What executives need to do is come up with organizational values that indirectly result in the strategy they want.
That is, if your company makes widgets and one of your values is customer satisfaction, you will probably end up with better widgets of the right sort for your existing customers. If one of your values is to be environmentally friendly, your widget factories will probably pollute less but cost more. If one of your values is to make the tools that run faster and smoother, your employees will probably make less bloatware and you'll probably hire different employees than if your values are to scale fast and capture the most customers in the shortest time.
Why will employees embrace whatever weird organizational values you set? Because in every decision meeting, you enforce your values. And you fire the people who don't line up. Recursively, that means executives lower down the tree will do the same, because that itself is one of the values you enforce.
Unless it's somehow impossible to hire people who agree with your values, you can assemble an organization that aligns with them. It might be a terrible organization that ruins your business, but then ... well, those values weren't a good choice.
I can't believe nobody told me this before. It's all so simple, and it's all been documented since the 1980s.