Ringelmann effect: "More equals a little more?"

Alan Hirsch Not sure what to make of this (Ringelmann effect)http://bit.ly/GKwNY Implications if any?

Ringelmann effect - Wikipedia, the free encyclopedia

Ringelmann noticed that, as more and more people were added to a group pulling on a rope, the total force exerted by the group rose, but the average force exerted by each group member declined. The Ringelmann Effect thus describes theinverse relationship between the size of a team and the magnitude of group member's individual contribution to the accomplishment of the task.