McNamara was the biggest fool ever to work his way to the top. I guess he must have had a persuasive personal manner, because everyone thought he was the cat’s whiskers.
He was an idiot.
One of his biggest f*** ups was not allowing the bores of M16s to be chrome plated, causing the initial jamming problems of the first M16s to reach Vietnam, it was not his only huge mistake but one of the worst ones.