The touchdown drive may end in a fumble. The troop may have a bad weekend during the camporee. Or the city's citizens may not be convinced that the mayor's policies are right. So these leaders have to try again, using other methods. But they still use the same process the process of good leadership.
Leadership means responsibility.
It's adventure and often fun, but it always means responsibility. The leader is the guy the others look to to get the job done. So don't think your job as a troop leader or a staff member will be just an honor. It's more than that. It means that the other Scouts expect you to take the responsibility of getting the job done.