Answer:
- Effective, but not efficient.
Step-by-step explanation:
Leadership is associated with a blend of effective as well efficient performance to attain the quality goals within a specified time-limit.
As per the given description, Brenda would be called an 'effective, but not efficient' manager as she, however, produced the desired quality results effectively but could not ensure the 'maximum utilization of time'(as she took more time as compared to the other managers). This wastage or not using time efficiently demonstrates that she was effective but not efficient as she failed to employ the resources in the supreme possible manner.