Bayer CropScience has made three appointments to its executive committee. Marc Reichardt becomes head of agricultural commercial operations, replacing Lykele van der Broek, who retires next year. Bernd Naaf takes over the head of business management and labour director, and Dr Dirk Backhaus the head of product supply positions. Mr Naaf also becomes a member of the board of management. The appointments are effective from January 1st 2014. Mr Reichardt remains in charge of the company's Latin American regional business until the end of the year. Mr Naaf is head of Bayer's Europe, Middle East and Africa business and takes over from Gavin Marchant, while Dr Backhaus, head of supply chain management and strategy, will replace Achim Noack.