I see a business as a group of people trying to sell something, a product or a service which, make this group of people the most important part of the business.
The leaderships, the owner, the founders. there is not business is this people is not doing the work that are supposed to be doing. They have to know the market, the why of the business and by the way have a strong and personal why.
But also you can hit the lottery. For example don’t know anything about the market but your uncle who knows everything became your advisor, so there you go, your business will be successful.