I believe the answer is: <span>The stage manager
</span><span>The stage manager has the duty to actualized the ideal set from the directior's creative mind into reality.
Since not many people able to understand how to do it, stage managers tend to be indispensable and would be re-hired by the directors when they move to another project.</span>
I'm pretty sure it's navigation acts
Because its in the middle or center of the area
The therapist would likely suggest that Jennifer should start writing about her life by which it can be a one way of expressing and letting out the bottled emotions that Jennifer is experiencing and to be able to move on and accept the past that has been haunting her all this time.