What position in professional sports requires the highest level of talent?

I don't have an answer, but I've always blown away by how good professional athletes are, especially pitchers. I remember throwing a baseball at an arcade machine that clocked the speed. After a few throws, I think I maxed out at 54mph, and it felt like I dislocated my shoulder. When I think of 87 mph changeups, it makes me chuckle. I could never throw that fast, let alone keep the ball over the plate.