The TED presentations are phenomenal. If you haven't seen one yet, you are missing out. Below you will see a conductor explaining how the art of conducting applies to leadership. A good conductor can lead without telling everyone what to do at every moment - often the leadership is better when there is less control exerted. A conductor invites the musicians to share their own story and together to make a better story.
Maybe in your presentations you don't need to spell everything out. Maybe your sermon doesn't have to tell people what to think, but rather invite them to explore on their own. Encourage the church to engage the story of Scripture and together you can have a better story.