Human creativity, of course, is different from biological diversity. It’s an imprecise analogy to compare a falling tree in the Australian rain forest to a change in management at Disney. Let’s play with the comparison for a moment, though, because it offers a valuable lesson: When strong ideas take root, they can sometimes crowd out competitors so thoroughly that alternatives can’t prosper. So sometimes the best way to spark creativity is by disturbing things just enough to let some light through.