One of the key ways to tell whether or not a group is under adequate leadership is to examine how well the group works together when the leader isn't present.  A successful leader should not have to constantly be present (micromanage) in order for the group to work well together.  A successful leader has already established a common "theme", of which the rest of the group can follow no matter what the circumstances are.

This is apparent in all parameters of life.  One  that I was able to whiteness this personally was through my internship a couple of summers ago.  I worked for group RCI, which is a large timeshare investment company located out of Indianapolis, Indiana.  I was placed in a cubicle amongst hundreds of other employees.  Many of these employees were extremely hard workers, and did not need much guidance when it came to getting their work accomplished and on time, however there are always going to be social loafers.  Around 20% of the employees that I worked with truly hated their jobs.  This was evident when you would walk by their cubicles and see them watching videos or writing personal emails on company time.  Since much of the work was assigned to teams, these people really hurt other employees by not accomplishing their portion of work.  This in turn made the company as whole look bad in the eyes of many upper level executives.  This just shows that one rotten apple can spoil the whole bunch.