Thinking Duchene is an 80 point guy after three years of not doing it, is the same kind of thinking that pegged Scott Gomez as an 80-90 point guy after 3 years of not doing it.
I'm not saying Duchene is going to turn into Gomez and suddenly forget how to score altogether.
But what we have seen in the NHL is that guys peak younger, 22, 23, 24..... and then settle in at a slightly lower pace. Duchene peaked at close to a PPG player and now is settling in as a 55-60 point guy. Could he get more, maybe in a perfect season... but the fact is that its unlikely he comes in and puts together a run of career best seasons in his late 20s.