Answer:
1) IDEAL First Step: Identify
You need to get to the bottom of the issue, not play the blame game.
Have your team members (perhaps after a team-building game like #7) write all the causes they can think of on a large white board. Go through them one-by-one, asking one question: what caused this cause?
By backtracking to the ultimate root cause, you create a solid foundation for further discussion.
Explanation:
