I am thinking of son M, who begins his work as a youth pastor today in a Swiss town. I haven't asked him where he began. This is what I would do first, in any Church -- assuming that I had talked to people, and familiarised myself with the situation:
• Deliver spiritual substanceOBSERVATION: Gradually and prayerfully, of course.
• Draw out the congregation's spirituality
• Apply discipline broadly