With so much focus on thinking outside the box, many of us often forget that simply thinking inside the box will give us the answers we need. If you're having difficulty completing projects on time, you may just need to use the skills you already have inside, rather than what lies outside.
Sometimes we get so set in our ways that we fail to notice an easier way to do things, simply because it's not the way we typically solve a problem. By allowing ourselves to use different parts of our brain to accomplish even simple tasks, we won't continue to limit our growth.