Fred Hiatt: Coats and other adults shouldn’t quit the administration.

No, Dan, don't quit. Please.On Tuesday, my Washington Post colleague Ruth Marcus wrote a column urging everyone who works for President Donald Trump to resign immediately. "Save your souls," she wrote. "Save your honor, such as it is. Save your reputation, such as it remains."She came to her conclusion more than a year after another colleague, Robert Kagan, wrote that Trump staffers "may want to start asking themselves how all this is working out. On balance, are they preventing bad decisions mo