Authority vs Authorship
When we're promoted into a management role, there is a natural tendency for many to need to prove their authority by changing things or issuing mandates on what to do. Often, ill thought out and largely done to show that the boss is indeed the boss. On account of them telling people what to do and being all serious.
In reality though great management is much more about giving people the environment, resources and latitude to achieve great things and then monitoring progress. It's less about telling people what to do and how to do it, and more about helping people understand how to achieve their best within a performance framework. Authorship gives people accountability and latitude to decide how best to do things. Authority gives people boundaries in which to do as they are told.