Organizational Theory isn’t a science, though it would like to be. Unfortunately, building a scientific approach requires understanding from a number of fields that themselves are still only aspiring to be sciences. Because psychology, economics, and sociology are a mish-mash of rules of thumb and vague, non-predictive, and generally unfalsifiable “theories”, organizations are reduced to ad-hoc rules and guesswork: critical, but prescientific.
For now, to abuse the parable of the blind men and the elephant, organizational theorists are still groping at their respective elephants, unable to figure out that the trunk is next to the tusks, or even that they are part of the same animal. It’s not a science: if anything, it’s a field of engineering, albeit one without a grounding in physics or Asimovian psychohistory to draw from. Precisely because the field isn’t scientific, understanding the engineering rules of thumb that were developed over time is fantastically useful for a practitioner.