Let’s not pretend he’s a lost cause. He’s a second year player who has insane puck skills, speed, passing, and competitiveness.
He needs to go to Rochester, work on his game, and have Taylor build his confidence. It’s seems to be working for Thompson. Plenty of kids get sent down and come back stronger. Jokiharju is a case in point.
And the communication here is big - let him know clearly what it is that they want him to work on and how to proceed. Also be clear that the assignment isn't going to be just a few days or a week - he needs to go down and WORK. There are still the bones of a good player there. Just fill out his game.
And again, that he worked hard this summer doesn't mean he's at the point he needs to be as a pro. His speed and endurance aren't things that seem to be all that yet -- he can continue to work on himself physically do gain more speed and certainly get his cardio up so that he's able to execute better.