is the sole requirement? Why did not the track coach let Ziggy on the track team if pure freakish ability is the sole requirement?

Ziggy has said several times that he considers himself a flower and shied away from hard hits. Does that sound like someone you want anchoring your defensive line? No, it took time for Ziggy to learn the game and learn to at least tolerate the hits and to use his freakish ability in the right way.

I wouldn't give you a pair o' dimes for the paradigm you ascribe to Bronco.