A conversation outline will make sales and networking easier

Yes it is possible to “freestyle” with clients and when you’re mingling at events, but that is a more stressful approach because of the mental exertion required every time you’re in a new social context or conversation. Also there’s the problems of scaling your sales and marketing efforts when you “freestyle” because you can’t teach everyone to “do it” like you. So freestyle at your peril! Or templatize what you can and watch things grow.