At the rank of captain, Miller along with nine others from the Office of Statistical Control, famously called the Whiz Kids, sought opportunities to get hired on as a "package deal" to bring their logistics expertise to the public sector. The group made an agreement with Henry Ford II, and were hired on to the Ford Motor Company. Miller was hired in 1945 as part of the Ford finance department's analysis unit. By January 1961, Miller was promoted to Vice President for Finance. He was named President of Ford Motor Company in May 1963, succeeding John Dykstra. Along with fellow Whiz Kid, Robert S. McNamara, Miller is remembered as helping Ford to add safety options to their automobiles in the mid-1950s. During his time as President, Ford unveiled the Mustang and responded to the need for more automotive safety features after Ralph Nader's 1965 book on the automotive industry's design flaws, "Unsafe at Any Speed". After the Detroit race riots of 1967, Miller formed the Economic Development Corporation of Greater Detroit in 1968 and served as the chairman until June 1969. In 1968, Henry Ford II abruptly named Semon Knudsen as President and moved Miller to vice chairman, a role created for him. In 1969, he left Ford's management team, though he stayed on Ford's board until 1986.