Though Derthick's and Pressman and Wildavsky's studies reflected some important differences in context,they shared some key takeaway points.First and foremost was that not enough though and attention was devoted to implementation given its importance to policy success.While planners and academics lavished attention on how to decide what to do and how to assess what had been done, there were too many assumptions and not enough knowledge about what happened between these two points in the policy change.The overwhelming impression from reading Derthick and Pressman and Wildavsky was that the real surprise wasn't that public policies failed, it was that they ever worked at all.