Hello,
Your question is not very clear to me, but from what I understand, here are my thoughts:
1- Always recommended to structure your stories in the STAR format as you may know.
2- With PEI, it's important that you focus a LOT more on the Action, Result and Learnings.
3- Thus with your story on adapting to change, highlighting setbacks is fine. But what is more important is how you used those setbacks to your advantage, how did you behave during those setbacks, did you make some leadership decisions or showcased some powerful skills that helped you overcome those setbacks, etc.
Hope this helps!
All the best!
Rushabh
(edited)