This is an awesome question. What sort of responses have you seen from this? Do most folks have a quick answer or do you get some thought? As an interviewer, I'm not sure I would ever expect a question like this.
In hindsight, I wish I'd had enough experience with the question and possible scenarios to ask for a second answer from people in the first org; I suspect there were more good answers available, but one obvious answer that everyone snapped to first.