Andy Mattes
Mattes' tenure as CEO of Diebold Nixdorf saw a 44% stock decline and a liquidity crisis, leading to a class action lawsuit for alleged false statements.
Despite strong analytical skills and a focus on innovation, Mattes' leadership is marred by questionable personnel choices and a lack of openness to tough conversations.
Mattes' claims about his role at Siemens Communications USA appear embellished, raising concerns about his transparency and credibility.
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