Or we could not worry about anything, even "tiers", and let a kid with a lot of raw potential develop.
But it would also help to give context to these players draft +1 years. Its something I've been digging into trying to do a better job myself when comparing these guys.
As an example, Boeser in his draft +1 season played on a powerhouse North Dakota team that went 32-6-4 and won the national championship. He had teammates like Schmaltz and Caggiula and he was a production machine. Then the following season North Dakota was much weaker without many of the key pieces (like Schmaltz/Caggiula) and went 21-16-3. Boeser's numbers came down to ... . ironically .... right at Jost's level in his draft +1 season.
The production of these guys is usually impacted by the level of the teams they play on. Mittelstadt's Gophers are no where near the level of the North Dakota team Boeser played on in his post draft season. I'm not even sure you could say they are on the level of the North Dakota team Boeser and Jost played on the following season but its close.
Casey is still fairly raw and needs work on his game. It was a decent jump from a half USHL/half high school season to the Gophers. He has much more work to do to be sure. But I wouldn't get too concerned because of how his draft+1 season compares to others.
This plus what chainshot said.
This is what some of us tried to explain when posters at the wjc were saying that mittlestadt has Eichel potential. He doesn’t, and is still a typical high end guy, potentially on a connors or boeser path. He is reliant on his teammates, like most players, to hit big on production, especially as a true freshman.
Eichel, as an early entrant to ncaa, was independent from his team for production. I never saw kariya in college so perhaps he was similarly dominant, but I have never seen a college player, let alone a freshman, let alone an underage freshman look like he did.
Perhaps Ethan Edwards can correct me, but Eichel joins a very average if not weak BU team from the previous year. He brings a really good draft class with him, but the upperclassmen on the team are not very talented by elite ncaa team standards. And then he dominated, immediately. While still clearly learning and not playing the kind of defense or with the kind of pace you expect out of a veteran. And he started the season as a 17 year old.
Just a freak and the reason conservative posters like myself could see real comparisons to a Malkin or Federov.
Mittlestadt will do just fine. I think a jump to the ahl next year would be best to avoid bad habits and get used to talented teammates and use them accordingly.