Between 1997 – 2011 he lead a global network of senior consultants, focusing on the design and implementation of complex change in multinational organisations. Since 2012 he focuses on implementing change in global health and development. In addition, he does research in developing methodologies for organizational change and leadership education using the paradigm of complexity (co-operation with Professor Douglas Griffin, Complexity Research Group, University Hertfordshire and Professor Richard T. Pascale). One of the results of this research is Challenge X, an innovation in the field of leadership education. Another example is the Action Lab methodology. Action Labs are used to engage key players and executives in designing solutions to strategic organisational challenges in a timeboxed structure.