Breaking this into 2 parts:
1. Meta level - are the Org & Leaders aligned in consuming these results and doing something about it? If they are going to sit on them and not take action, whatever you do, will fail!
2. Tactical level -
• Asking wrong questions in the survey (don't template)
• Outputs with a lot of graphs and no callouts. A fancy graph is pointless. Your eNPS must give tangible outcomes and point to where the problem actually is.
• Survey faituge
• Not sharing the results with your employees. If you don't share, they will stop filling after a point.