The second law states that the total entropy in any isolated system always increases during the process of change, because that is overwhelmingly most probable.
Entropy is a measure of the disorder in the system: it measures the number of different ways in which the components of a system can be arranged, and so is larger for less orderly systems. The second law simply a question of probability: high entropy states, being more numerous, are more likely to arise from processes of change that are low entropy states.
Clegg, B. (2017). 30-Second Physics: The 50 Most Fundamental Concpets in Physics, Each Explained in Half a Minute. Metro Books.
But, another force, entropy, is also at work. In science, entropy measures a physical system’s degree of disorder, and the second law of thermodynamics states that entropy always increases in an isolated physical system. Similarly, weakly managed organizations tend to become less organized and focused. Entropy makes it necessary for leaders to constantly work on maintaining an organization’s purpose, form, and methods even if there are no changes in strategy or competition.
Rumelt, R. (2011). Good Strategy Bad Strategy: The Difference and Why It Matters. Currency.