David Hancock's book explores alternative approaches to the linear solutions to project risk; one that uses the perspective of 'tame, messy and wicked' problems to categorise risks. Wicked problems (such as those having a community or societal benefit) are those involving a high number of stakeholders and have no optimum solution. Messy problems (e.g. transport networks) are those involving a high number of interconnected systems. Wicked Messes involve both! The solutions require risk managers to identify project stakeholders and seek resolutions between their different perspectives, as much as deliver singular 'best' solutions.