Although I am fairly comfortable (certainly not an expert) with TDD, DDD, and Agile concepts, I am working with some contractors who are not. They're smart guys though and given the limitations of our project they agree that techniques from these schools would increase our chances of success. We are not looking to go full blown but TDD with a DDD eye to the domain layer is a must. To that end they are looking for a trainer to conduct a several day-long training session to catch them up as much as such a program can.
They have a couple of potential trainers lined up who seem to match the criteria and one is even a certified scrum-master, but we all realize that a certification can potentially be meaningless. As such they have asked me, as someone who is at least somewhat experienced with the techniques in question, to help them come up with several interview questions to ensure they're not hiring complete hacks.
So part to get ideas, and part because I'm sure the SO community would have a blast with this. What questions would you give to test an Agile coach?