This must be lower for various reasons, such as redshirt, buried in depth chart, quitting, requiring more development & transferring, so.... not thinking that our typical hs recruit plays that much longer.
Bonus with entering from portal is they are ready to play, mature, etc. maybe more value from the 1-2 year portal guy than the hs recruit that ends up not contributing early, and still eats up 4 years of room & board...