1. Lack of experience and knowledge
2. Beginning programs without adequate plans
3. Inadequate cash flow plans
4. Poor marketing
5. And sales plans
5. Not counting the cost
6. Failure to monitor key indicators
7. Not funding deferred maintenance or depreciation
8. Thinking BIGGER is better
9. Insufficient data on marketing trends
10. Being unwilling to change with the times
Please leave a comment and add to the list.