Preaching on Sunday mornings is such a simple thing, and by complicating it, I think we all do ourselves and the audience a disservice. It is very simple. Here is the model: Make people feel like they need an answer to a question.
Two primary ways to keep volunteers motivated - Food and T-shirts.
Priority determines capacity.
Don't be fair, be engaged.
There is no cramming for a test of character. It always comes as a pop quiz.
Who are you and what breaks your heart?