"Overall effectiveness" refers to how well something or someone is performing or achieving their goals in a general sense. It takes into account all aspects and factors that contribute to success or accomplishment. Full definition
The coach communicates as part of the team to increase overall effectiveness. (cooperativeparenting.com)
This rating (1 to 20) is a standard for overall effectiveness. (rismedia.com)
Established efficient work flow processes, monitored daily productivity and implemented modifications to improve overall effectiveness of office personnel and activities. (livecareer.com)