Mario Draghi will leave a more united euro zone when he steps down as president of the European Central Bank this week, but he hands over a body more publicly divided than ever on how best to resurrect an ailing regional economy.The 72-year-old Italian banker is widely credited with saving the euro zone from collapse, but some critics say he also overpowered opponents and tended to front-run the bank’s monetary policy in public.His approach fuelled discord that spilled into the open, critically weakening the bank’s united front when it was most needed to persuade investors that it was committed to its policies.Close More than a dozen current and former ECB policymakers who spoke to Reuters all agreed that Draghi is a superb central banker who deserves credit for swift action during the euro crisis of 2012, when he single-handedly saved the currency by quashing speculation against the bloc’s most heavily indebted countries. related news US opens national security investigation into TikTok: Sources US October job growth slows less than expected In-Depth | Donald Trump’s impeachment inquiry and a precariously stacked house of cards “Draghi was an inspiring leader at very difficult times,” former Austrian central bank chief Ewald Nowotny told…