Look at the term Theory of Constraints https://en.wikipedia.org/wiki/Theory_of_constraints. There is a "business fiction" book called "The Goal" by Eli Goldratt that is pretty approachable. He actually wrote a number of books at different levels of detail. Initially the concepts were addressed for manufacturing ops, but there are some fundamental similarities for scaling software teams, focusing where you produce value, and where you can create waste and misfocus if you try to keep everything/everyone busy at 100%.
Agree on Goldratt, and the book his daughter wrote and recently released, called 1) "Goldratt's Rules of Flow." Theory of constraints is a rich subject with heavy roots in industrial engineering. Look for Don Reinhardt's 2) "Principles of Product Development Flow" as the gold standard. Also most all of Edwards Deming work touch on systems thinking from the industrial engineer perspective. See 3) https://deming.org/. Additionally, see books like 4) "Systems Thinking and Other Dangerous Habits," and 5) "Team Topologies" as examples of why legacy management are probably doomed if they don't learn how to scale teams via a coherent system. Finally, Senger's 6) "The Fifth Discipline" is total classic on why we need to shift our legacy management mental model to an organizational system that is continuously improving via systems.
