They can be taught. If you are teachable. What works for you will not likely work the exact same way for someone else. Knowing the latest sales techniques and tips is like a doctor that only treats symptoms and never the cause in the first place.
In all truthfulness, before I finished this blog post I read my own sales assessment from 2 years ago. I have done that several times whenever I am faced with one of those business/life changing decisions and need a reality check.
Two things stood out to me after I asked my coach the same question as this blog post title.