MAN SE appointed Joachim Drees to lead its truck and bus manufacturing unit, the first key personnel change since Andreas Renschler has started as head of commercial vehicles at parent company Volkswagen AG. Drees, who like Renschler is a former manager at Daimler AG, is taking over from Anders Nielsen, who will run business development at Volkswagen's commercial-vehicle division, Munich-based MAN said March 20 in a statement.