Decision analysis has changed very little since Decision Analysis for Managers (first edition) was published. However, in light of recent megatrends (e.g. the Great Recession of 2008, collapse of commodity prices - especially oil and gas, the poor performance of large projects), more discussion of project risk (cost, schedule, and technical) within the context of DA is appropriate. And, in light of these same megatrends, a more detailed and thorough discussion of decision quality is an appropriate addition to the original text.