If war isn't regularly and actively being prosecuted the military turns to infighting, the officers that are promoted are promoted because of their ability to suck up and kiss ass, meanwhile the people that get things done, that bruise egos, and deal with things directly end up phased out and pulled down.
Part of the reason WW1 was so horrible wasn't just because of the technological advances, or the environments they fought in but because of how many worthless brass were involved and f**ing things up regularly. Hell France was only saved from falling within a month because their top general went on a spree of firing over half the commanders and replacing them with people that produced results.
In the next substantial military conflict the US faces we will spend a long time losing until we fire most of the people currently in charge and the thinking changes.
As evidence let me point to the continual massive investment into the fighter program. Those advocating the fighter program are the cavalry commanders of the 1910, thinking in an outdated and outmoded way of thinking that they are wedded to, and will continue to rely on and push for despite the fact it is a clearly outdated and obsolete way of thinking.
EDIT:
As noted below Dr. Hugh Nibley was Professor of Ancient Scripture at BYU if you feel that substantially impacts your opinion of this quote.