I think they are made in SaaS — but made early.
By that, I mean the best SaaS professionals and managers I know have a variety of approaches and temperaments. Some have a very intellectual approach to sales. Some shoot a lot from the hip. Some are aggressive, others are determined (similar, but different).
But all the best ones I know started early. Often, their first job or close to it. As an SDR. As a recruiter. Maybe even outside of technology. But they started there, learning, improving, and growing.
What I do worry about is someone that later in their career that wants to get into sales because they think it pays better, or is more glamorous. I don’t see that work out that often.
Getting 50 Nos before a Yes is tough. Probably best to learn early if that’s you.