Diplomacy? Tillerson Says His Top Priority Is Efficiency

Critics say Rex W. Tillerson is still acting like a corporate executive and not the secretary of state.

WASHINGTON — Secretary of State Rex W. Tillerson said Thursday that the most important thing he could do during his tenure was to make the State Department more efficient, and in a lengthy letter to employees he promised that the efforts would yield significant savings.To his critics, his remarks and the letter outlining his proposals were simply more evidence of their contention that the former petroleum engineer is still acting like a corporate chief executive and not the nation’s chief dip...