Both are true. To have a huge success you need a great product that "sells itself" and you need sales and marketing to sell it.
Having just a great product will get you so far, but won't break through into the big leagues. Having only sales and marketing but a shit product will get you a flash in the pan.
Having just a great product will get you so far, but won't break through into the big leagues. Having only sales and marketing but a shit product will get you a flash in the pan.