While I see value in the overall message, I think the author sets up a false dichotomy that somehow suggests there's a gulf between creative invention and pragramtic diligence. This is often something I run into - this notion that creativity equals flights of fancy, non-realist, ungrounded. On the contrary, creating, is in my mind, the wisdom to use the opportunities and resources close by, whether internal or external, to be productive in ways that exceed beyond what would be easy. Creativity and results can not be separated.