He spent most of his career as a wingback, not a WR. He spent his senior season as a tailback. This isn't even disputable which is why this is so pathetic

I didn't even realize he played runningback in high school too, it makes sense though. You don't waste that kind of athleticism on a high school team on a guy who'll only touch the ball on a quarter of the possessions at WR. Especially not back then.
http://sports.espn.go.com/espn/classic/bio/news/story?page=Flowers_Richmond
But tbh, I'll switch my position on this. Even though a Wingback is more RB than WR, (hence the back in the name, and playing in the slot versus out wide...) he wasn't a full time tailback until his senior season. He had already slowed down by then because of injury, and I don't know how his senior season track feats match up on the GWRBOAT (greatest white runningbacks of all time) list.