Patrick Leach is a Professor of Practice at the Colorado School of Mines and an independent strategy consultant. He is the author of Why Can't You Just Give Me the Number? - An executive's guide to using probabilistic thinking to manage risk and to make better decisions, now in its Second Edition, and is a Past President of the Society of Decision Professionals. He has written numerous pieces about the need to move toward sustainable business practices and how to use the principles of decision science and behavioral economics to develop strategies to do so.