Analysis of closed deals shows that opportunities where `decision_criteria_c` is explicitly defined have a slightly higher win rate:
- Defined Decision Criteria: 135 closed deals, 114 wins → Win Rate = 84.44%
- Undefined Decision Criteria: 81 closed deals, 68 wins → Win Rate = 83.95%
Conclusion: Deals with clearly defined decision criteria are marginally more likely to close successfully (an increase of 0.49 percentage points in win rate).