Only a substantial intervention by the German government can stop the collapse of the country's largest lender, Deutsche Bank, according to Stefan Müller, the CEO of Frankfurt-based boutique research company DGAW. "Deutsche Bank doesn't realize that something serious needs to happen," he told CNBC via telephone on Thursday morning. "(CEO John) Cryan clearly showed that he has no idea how to survive." The bank has repeatedly defended itself over recent weeks, however, telling CNBC that there is "no reason to worry" and that the bank had a "comfortable cushion." The embattled German lender saw a respite on Wednesday ... (full story)