The concept of servant leadership began as an ideal described by Robert Greenleaf many decades ago. Servant leaders are known to put the needs of their team before their own, nurturing them and helping them reach their potential above all else.
Over the decades, the theory has been evaluated, tested empirically, and refined.  The concept of servant leadership can be applied to some of the most well-known management theories and often times have a significant impact on organizational performance. Future research can take these ideas and apply them to find out if the evidence suggests they are true.
The servant leader may have the ability to affect organizations in a significant manner that improves individual, group, and organizational performance, and also makes those associated with the organization better than they were before. If that is the case it could revolutionize the way organizations are managed in the future.