I have made many mistakes over many years of leading music and worship. I share this freely with churches and worship teams I consult with. Articulating the basics articulated for both yourself as the leader and your team greatly improves your game. Also, teams need to have unity. Unity must be intentional, not randomly executed. This list was born from past mistakes.
When our congregation approved the construction of a new sanctuary, my pastor told me that he wanted me to be in charge of the selection and installation of the PA system. I immediately said a very definite “NO!” Several passionate conversations later, he asked, “Why is it that you are so unwilling to take charge of this project?”