I think the jury is still out on Quinn but what I don't understand is....
If you think Quinn's main job is to develop the kids. And you agree that development takes time, both mentally and physically. Then patience is required. If you think Laf and Kakko and Chytil and everyone else just need to hit the ground running, then there's a lot to be disappointed about. But I think it's unfair pressure to put on these kids.
The one major difference I see between 18 and 19 year olds making an immediate impact and those that take more time? Skating speed. Kids like Stutzle and to some extend Jack Hughes and K'Andre have a leg up because they have more ability to patch up a mistake but they also have enough speed to create space on their own even.
The downside to that speed is that it can become a crutch and some very fast players never bear down and learn the game positionally.
But without that game-breaking speed, you have to really figure out how to find and create space for yourself. Laf and Kakko are very talented but neither are blazing skaters. And on top of that, 18/19 year old kids don't have the man-strength yet to win all the battles they need to win. As a result, there's more development they need to do to figure out the NHL Game. Kravtsov is in the same boat. Buch and Zib were in that boat.
Furthermore, these young wingers man... when you're a young center coming into the league you have more responsibility but the nature of the position is, you cannot stop moving your feet. But when you're playing wing there's a lot more get into a spot and wait. And if you don't have a lightning fast first step and you're thinking a bit too much -- it's just a hard transition. And it's hard to watch.
As for Laf not being on PP1... I would argue he has too much Juniors in his game and he defers too much right now and so he's not nearly as effective as he will be. They can let him work through it I suppose, but also making him earn it is just as good of an idea. Mixed in with Laf thinking a bit too much are the occasional moment where he doesn't complete his plays. And when you're a winger on the PP a good chunk of your job is retrieving the puck in the corners and keeping pucks from getting pass him on the wall and helping the team get set up. And I think he's been very so-so at that.