Imagine a RB breaking out his true junior season, in a college football landscape of 22-24 year old men. I’m being facetious of course, but all this young brother needed was some time for his body to catch up to his skill level. Some positions will allow for freshmen stars because they are a little less physical; see wide receiver. But RB is a physical grind and a 20-21 year old power back is just much better suited to play the postion than a 18-19 year old.
Of course Cici and Bain made my entire post irrelevant, but they are generational talents IMO. Outliers are not good rule makers.