John Dixon is Principal Adviser Research & Program Manager, Cropping Systems and Economics, Australian Centre for International Agricultural Research (ACIAR), Canberra, Australia. Dennis Garrity is Senior Fellow at the World Agroforestry Centre (ICRAF), based in Nairobi, Kenya, UNCCD Drylands Ambassador, and Chair of the EverGreen Agriculture Partnership. Jean-Marc Boffa is Director of Terra Sana Projects and Associate Fellow of the World Agroforestry Centre (ICRAF), Nairobi, Kenya. Timothy Olalekan Williams is Regional Director for Africa at the International Water Management Institute (IWMI), based in Accra, Ghana. Tilahun Amede is Principal Scientist and Systems Agronomist at the International Crops Research Institute for Semi-Arid Tropics (ICRISAT), Nairobi, Kenya. Christopher Auricht is Managing Director of Auricht Projects, a niche international consulting firm based in Adelaide, Australia. Rosemary Lott is Director of Vegetation Connections Pty Ltd, and an Assistant Director, Australian Government Department of Agriculture, Canberra, Australia. George Mburathi is a former FAO Deputy Regional Representative for Africa, Nairobi, Kenya.