Gary Vaynerchuk makes the argument that just putting in the time and energy might not be enough to make a successful business.
Everyone thinks they can be a great entrepreneur. But is that what you are best at? If a rabbit is trying hard to be a frog, it may make a decent frog. But it would be a much better rabbit.
To be successful, you have to combine your natural talent with hard work. Even the most dedicated football player can’t make it to the NFL without innate skill.
Source: Change Your Mind About Failure