State Department employees had one main reaction to Rex Tillerson’s ouster as secretary of state on Tuesday: “Good riddance.” President Donald Trump’s decision to fire the top U.S. diplomat sent a wave of hope through a department battered by low morale under Tillerson, who dismissed the expertise of career diplomats and sought to downsize the department. Tillerson was also widely seen as unable to speak for the president, who frequently undercut him on policy issues.