Brainy folks were also present in Lyndon Johnson's administration especially in the Pentagon where Secretary of Defense Robert McNamara's brilliant 'whiz kids' tried to micro-manage the Vietnam war with disastrous results.
Every president has to live with the result of what Lyndon Johnson did with Vietnam when he lost the trust of the American people in the presidency.
In my school people liked the gym teachers because they were the football or soccer coaches. But look if they're cool they get respect.