TOKYO -- The impact of Nissan Motor CEO Hiroto Saikawa's resignation is rippling into Japan's capital market as investors lose confidence in the automaker's efforts to right itself. Saikawa officially steps down in mid-September, and a replacement will be named as soon as late October. But the scandal has only compounded the woes of an organization already struggling to move past the November 2018 arrest of since-ousted Chairman Carlos Ghosn. "We believed there would be no more misconduct among the leadership, but we were let down," a fund manager at a Japanese asset management company said.