I like the way you formatted your interview questions. I felt like your writing made it really clear how you structured your interviews. This led me to really get into the questions and your whole thought process.
I wish you had included more about your unpacking process. The picture you had only had the bare structure but from your insights and your discussion in class I really get the feeling that there is more there. If you had included more diagrams or even used a more expanded process I feel like your post would have been more clear.
What if you had observed MyBurger at a more busy time? You mentioned in your discussion that you felt like a more busy time might have showed you more and I want to expand on that. In a busy time I can certainly see them making more mistakes and either cross contaminating other foods. Basically in all fields the faster you work the more errors you would have.