The effort level is what makes me really high on the guy. He reminds me a lot of Parise, which is why I think they'd play well together on a line with Ek centering them. Not sure if that's plausible now with Staal's departure, but I believe it's a line that would've been offensively productive while still taking on the toughest assignments.
Regardless of where he's playing though, I don't see him stagnating. I don't know what it is, but have a lot of confidence in the consistency of his game. Which is a great attribute to have at a young age. I'd be very curious to see how he would perform on a line with Kaprizov (do we know if Kap is gonna be a RW or LW?).
I think Dumba has to go so that we're not put in a place where we could potentially lose Kunin, but the only player that's ever intrigued me in the discussions is Monahan. If BG can find a way to bring in Monahan, I'm a lot more hopeful for the direction this team could take offensively. I think we could be in a really good spot by the 21-22 season when guys like Boldy, Khovanov, Addison, and 9OA pick are all potentially entering the league.