Why could there be a delta between the total number of initiatives within a team and the sum of the initiatives associated with the managers who are part of that team?

A delta can occur when dealing with co-authors. Indeed, initiatives may have been declared by people who belong to different teams. When the application is questioned at the highest level, the initiative with co-authors is only counted once. On the other hand, it can be counted several times if the different managers of the co-authors are searched separately.