I don't think there's any real conflict between these two schools of thought. I think different approaches may work for different situations.
For example, I agree with the inner school, find your motivation from within by following your passions and what you heart tells you. However, simply because you follow your passions doesn't mean there won't be hard work to reach your goals. That's where the structure and organization from the outer school comes in. There's place for each and can work well when balanced correctly.