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.
Somehow, what's in our hearts, good or bad is eventually translated into words and deeds.
When a plan or strategy fails, people are tempted to assume it was the wrong vision. Plans and strategies can always be changed and improved. But vision doesn't change. Visions are simply refined with time.
God is a God of systems and predictability and order, and God honors planning.
Preachers prepare with this fear: 'Am I going to be able to fill the time?' The audience never worries about that.
If you're a preacher's kid, you see the church differently.