If your product or service is not good, it's impossible to scale your business. A building can't get built on a crapy structure. It needs to be strong so you can build on it. Same goes for your business.
You need to know how to sale to convert leads in clients. Business without sales is a dead business!
If you don't know how to market your business it will never be known. Attention attracts money! You need to get attract people to your business!