My interview process included five separate interviews, including an initial screening, a second phone interview with a manager, then three back-to-back on site interviews at the Chicago office. The screening interview was very conversational as expected and was not difficult whatsoever. The second interview with the manager included more direct questions such as "Why do you want to go into consulting?" and "Why Protiviti?". The Manager also asked about more in depth industry related topics as they want to confirm you actually know what you're talking about. The on site interviews were extremely conversational as well, and seemed to be more of an attempt to gauge personality/intelligence rather than to test what I knew about arbitrary topics. This was refreshing to experience, as it seems to be an indicator of their orientation to prioritize the quality of a person over their ability to memorize interview techniques.