I was never an amazing athlete, and I think some of it was a lack of applying myself. I did make 2nd degree black belt during my high school years, and I enjoyed playing volleyball. I had enough of a vertical that I could just barely dunk a volleyball, since my hand was big enough to palm it one-handed, but couldn't do a basketball because I couldn't jump high enough "two-handed".
But I've always said if I'd actually applied myself in football, I have the right frame to play line. Leaving high school I was 6'5" and 225#, without doing ANY weight training, and that was all lean muscle because of the amount of time I was spending doing martial arts. Even now I'm running about 265# without looking "fat", although my body fat percentage is well above where I'd actually like it.
If I had been applying myself in the weight room, I easily could have carried 300# of muscle, and that in itself might have gotten me a look or two at small schools.