It's important to always put efficiency in context:  what does it mean?  

• A poor Efficiency Ratio usually indicates sales, product, and overhead problems.
• It's one of many metrics to compare and help diagnose; it's not the answer
• Think long-term—efficiency investment today may not pay off for years
• Efficiency Ratio vs. Efficient vs. Effective
• Teach your people the difference between Productive and Effective