They will help the part-timers to be as effective as possible, and to avoid the duplication of effort.

To avoid duplication of effort, the three federal agencies work together and usually accept each other's examinations.

It is a colossal duplication of effort for the universities to hold big public examinations only to find that it contains no useful information.

Much of this activity has led to duplication of effort, reinventing wheels and territorial infighting.

Always good to avoid duplication of effort.