 One of the things I try to share with school administrators is to think about incremental change. And that's the low-risk things. And obvious that, OK, I don't know a lot about e-books, these digital books, but I'm hearing a lot. And it seems like that's the next logical step in terms of textbooks being converted to digital. Kids could read them online. They don't have to carry the physical book home. So lots of reasons. And the English department's asking for more e-books. And so it's a low response cost to administrators to say that, because we look at how change is happening. And it appears logical. We can accept that. Some of us will do it sooner, so I'll do it later. But that's probably not where the action is. That's really a low-risk response about incremental change, because we can kind of see the dots and we're connecting the dots. So the notion of risk and risk taking is very important to what we're talking about here.