Team Coaching: How do you diagnose the problem?

We're talking about team coaching, and more particularly about the levels of team coaching. We've talked about the structural level, the relational level and the psychodynamic level. Now I want to talk about; How do you diagnose? What kind of diagnostic diagrams do we use in team coaching using transactional analysis?

Eric Berne talked about six different diagnostic diagrams. He talked about a location diagram. You literally draw a team, where you show the physical situation of the team. In a group, you draw a seating diagram, where do people sit? In an organization, you would draw, what level of the building the departments are situated on.