It all depends on the individual-opportunity nexus. To summarize this, identify or create an opportunity that you can see it more clearly than others. Once you're certain that it's exploitable by you, this means you're the right entrepreneur to do it. The next step is to convince others(investors, team etc) that this is an actual opportunity - hardest part.

I would also say drop the words you're using for now: business, metrics etc. You need an opportunity that you can exploit. You can create it or find it. Not all people see the same opportunities, and not all opportunities are exploitable by any entrepreneur.