Individuals and institutions are basically wary of change, even though they understand intuitively that it is inevitable. This wariness is generally not a bad thing; it provides a degree of inertia that moderates the rate of change. It also serves to make it a carefully considered process. Most often this caution is not resistance to the new but rather a healthy questioning process on how change is applied (as well as how fast it is to happen). History is full of examples of transformations made in haste that led to unfavorable outcomes. Thoughtless newness is not always better than a working status quo.
It should be recognized that cultural change in the military almost always results from technological change. New machines and devices facilitate better ways of doing things. People need to be trained how to operate and maintain new things. Then military planners have employ them to find out how warfare doctrines must be changed. Because this is all people-intensive, their existing culture must change along with the technologies