SPECIAL FEATURE - In a little over a week, as president of the European Central Bank, it will be up to Jean-Claude Trichet to explain European Central Bank policy. There are clear signs that he plans to change the way the ECB presents policy. Not only will he bring a different personal style to the job, it was announced Friday that his head of communications at the Banque de France, Elisabeth Ardillion, is to step into this role at the ECB. She will start in Frankfurt on November 1, the same