That may be exactly what Sec. Gates is doing with the appointment of the new Air Force Chief of Staff:Defense Secretary Robert M. Gates took action Monday to dramatically reorient the leadership of the Air Force, calling for the nomination of the first non-fighter or bomber pilot to lead the service since its inception after World War II.His recommendation that Gen. Norton A. Schwartz, who began his military career as a cargo pilot, be nominated by President Bush as Air Force chief of staff...