I know the point totals were not there this last stint with the Leafs, but that was easily the best Nick had looked at the NHL level. When he had time and space you could see how he can dictate the pace of the game with the puck on his tape. He is so shifty and deceptive that he can really create space from non threatening areas with one quick cut back or head fake. It's very Marner like at times.
The issue with Nick's game right now is that the pucks just don't ever seem to land on his blade (at the NHL level). Both offensively and defensively. Which limits the time he plays with the puck, and often times see's him hemmed into his own end for longer than we'd like to see.
It's very tough to compare Nick at 20 years old vs. Auston right now, but to some degree all good goal scorers just know where to be and when to be there. Auston is the greatest goal scorer on the planet and I am always blown away at how many loose pucks just fall to him in space. It is not a fluke. He is so good at finding those soft pockets of ice. I think from an offensive standpoint, Nick needs to learn to play a bit less busy away from from the puck and just go to open ice. The players he is playing with will find him. That is the benefit of playing in those higher leagues, the quality of your linemates goes up, and the ability to make those plays to find you in open space increases. Just go to the open areas.
I think to some degree that same passive/less busy approach could be said defensively. His first instinct is to go all out and chase the puck. But all that does is draw him further out of position if the player he is chasing is able to make a play. Again, at higher levels this only becomes more obvious as the ability of the players to make those very plays is that much higher.
I think Nick could really benefit from watching is Mitch defensively. I don't think Mitch gets nearly enough credit for how well he anticipates plays. He's not overly physical, or busy on the defensive side of the puck, but he knows where and when to put is stick in the right passing lane. His defensive anticipation is near the best on the team IMO, and it is what makes him one of the leagues best PK'ers. The more Nick can improve his play away from the puck both offensively and defensively, the more time he will get to play with the puck on his tape. Because ultimately when the puck is on his stick he already plays at an elite level IMO. His Puck handling skills and shot are top 10% in the NHL as it stands IMO. He just doesn't play with the puck all that often yet.
He has all the tools to become a special player, but he's just not quite there yet. Which shouldn't surprise or upset anyone by any means, he is only 20 years old and has had 3 major setbacks already in his pro career. I am fairly confident he will become an impact player in the NHL at some point.