- If you're interviewing a company, how do they go about setting up collaboration between different departments.
- If you're interviewing an individual "do-it-all" type company (like me ;-) ), about their process of getting a client on WordPress if it's their first time or porting old content over to a new theme.
- The basic design process they take, what questions do they ask their clients.

And what @Ozh said above.