No matter who President Donald Trump’s secretary of Defense ends up being, that person will be charged with disrupting the Pentagon to reform it and annihilating any vestiges of diversity equity and inclusion and wokeness.

But reforming and transforming the Department of Defense are aspirations, not actions.

When the Cold War ended and the Soviet Union collapsed, the main threat to the U.S. and its allies vaporized. Yet, the U.S. made relatively modest reductions to its forces, cutting back by about 25 percent.

We have a few instructive examples of attempted reform. When Robert McNamara was President John Kennedy’s choice for secretary in 1961, he brought to the Pentagon, the “Whiz Kids.” In addition to relative youth and huge brainpower, this team believed that systems analysis, through intellect and rigor, could solve any problem and turn the management of defense into a more precise business. McNamara had served in World War II in the analytical branch of the Army Air Corps and later went on to be the first non-Ford to become president of that company.

McNamara instituted the Planning, Programming and Budgeting System or PPBS, which is still in force but with an added "E" for Execution. Many of the McNamara analytical reforms were rejected due to failures in Vietnam, where........

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