Fellow speaker,
When interviewing people in preparing for your speech, interview people at different "levels". Interview top performers, average performers, and "rebels" who do things their own way and may be seen as "bottom" performers. This will give you a "balanced view" of the company and let you know about any issues you didn't find out in your discussions with your meeting planner. It will also let you in on "dirty little secrets" that people know about in the company.
Talking it over,
Tim
