But there was Auston Matthews leading a lot of the drills too, using his 6-foot-2, 210-pound body to protect the puck better than the smaller prospects, cutting into open space quicker and moving with the puck more crisply than the others.
"Auston's going to make the team," said Cole Sicard, Landon's 9-year-old brother. "I know it."
This was Matthews' first real on-ice work with the Maple Leafs. It was about going back to basics, not proving something; about building a foundation for the future, not making predictions about the future. It was mostly slow-motion skill development.
The coaches would put the prospects through detailed drills, take video of them with an iPad, break down the video with them right there on the ice and then have them do the drills again.
At one point, Matthews was sliding side to side with no stick and no puck, working on the technical aspects of his stride as if he were a kid at summer hockey school. Barb Underhill, a former Canadian Olympic figure skater and now a renowned power skating coach, had a specific issue with his form.
"You can always refine things and get better in small areas," Matthews said. "Her main thing with me was my left shoulder, I guess, wasn't coming across enough. So obviously I want to try to fix that. She definitely paid close attention to it."