That may very well end up being correct.  But with only 1 year in the NFL so far, it's a bit soon to declare Lynch no longer capable of further growth.

People have gotten spoiled with the handful of rookie QBs that have come right in and played well in recent years.  But it doesn't work that way for most.  And many get their start for bad teams that can afford throw-away years for development.  That's not the case in Denver lately, where every season has legitimate SB expectations.  

Having said all that, I do agree that Lynch is probably more likely to be a bust than a hit.  I'm just not ready to declare it over.