In terms of diversity of skills a NFL athlete cant hold a candle to a decathlon athlete. They are the true elite athletes of the world. Cardio, speed, anaerobic and aerobic endurance (takes years to develop), crazy high motoric skills, strong mental game. They got it all.
I remember a decathlon athlete from our country. Looked nothing special at all kind of like quarter of a NFL monster
but his endurance, strenght and motoric skills were out of this world. He made 8700 points in decathlon.
Thats how a freak athlete can look like:
If there would be a UFC draft for new talent thats the first talent pool besides martial arts I would be looking at.