The news was not entirely unexpected, but the timing was surprising: Martina Merz, CEO of the Essen-based technology and steel group Thyssenkrupp, is stepping down after three and a half years. In June, she was succeeded by Miguel Ángel López Borrego at the head of the M-Dax company with 96,000 employees. This is not well received on the stock exchange: the share price also fell on Tuesday after falling sharply after the announcement of the change on Monday. This reaction alone shows that López Borrego’s inheritance is not easy.