Leadership should be from the front, even when it is behind the scenes.
Leading the way means to take the first steps and chart the course that others will do well to follow. This can be done behind the scenes as is the case with most organizations that rely on volunteers. While the volunteer army goes forth to accomplish the goal, their success heavily relies upon the plan and focus designed by the leadership who may very well not be with them on the battlefield.
Or in other words, a good farmer does not need to directly harvest the crop if he has a harvest plan that can successfully be followed by his field hands.