There's an unstated assumption that excellence equals pro in this article. I'd say excellence is a necessary precursor to going pro, but is itself not sufficen

There's an unstated assumption that excellence equals pro in this article. I'd say excellence is a necessary precursor to going pro, but is itself not sufficent. That extra push is some magic combination of genetics, upbringing and opportunity (nature and nurture coming together just so) - all along with the drive and experience to become excellent.