Each specialist presents, then passes the stick around. After everyone has finished, move to the next area specialist. In the initial brainstorming session, collect as many ideas as possible. 5 minutes each area. Don't accept everything in the case as fact.
Perceptions often are wrong.
Then state the health of each functional area. Tie the facts together into issues. For instance, there may be hidden HR issues if the original business plan has changed due to the changes in the government or economy. What overall patterns can you you see. Write sentences to describe the issues.