What lessons are to be learned?
What is it in the structure of PROMYS that makes it possible to succeed with such disparate audiences?
the genius of Arnold Rosss problem sets;
the depth of the traditions and the community.
Are these teachers special before they begin the program?   Undoubtedly, yes!
What is special about them? 
How rare is this brand of specialness?
What relationship does this have with leadership?
How does the immersion experience affect teachers work in the classroom?
Can we replicate (generalize) key elements of the program?