Hindsight is 20/20. This is what I should have said to the interviewer today. Maybe I am a little "Pie in the Sky" optimistic and idealistic, but I'd rather be that than pessimistic and 'realistic.' Without a little idealism, where would you get the vision to make the change you desire?
It's an extreme example, but for goodness' sake, without idealism, we'd still be hanging out in caves. So, maybe I didn't get the job, but if you're wondering how to enact change in your program, you have to start with a vision of what you want it to be. And guess what? That takes a little bit of idealistic thinking.
So, I wish you the best at finding exactly what you're looking for.