IT DEPENDS ON HOW MUCH GUTS YOU HAVE....
Data based decision making is great if you are looking for small incremental changes. It takes GUTS and GUT INSTINCT to think you spot an opportunity and then do what you think is necessary to turn that opportunity into a great business.
There won't be data. You won't have friends. So you'll need guts.
That's how we got the iPhone, by the way, so don't shrug off the power of GUTS. Anyone can look at a chart and make changes based on the past, it takes real courage to step out and take a chance.
Just don't back down after you decide to be bold.