TRAVERSE CITY, Mich. — It was Saturday, after the Red Wings prospects had just beaten St. Louis 7-3, that Moritz Seider lingered near the entrance to the Detroit locker room, spending a few extra seconds looking at the team’s strategy sheets taped onto the door.



Call it studying, reviewing or something else, but it was interesting to see from an 18-year-old postgame at a prospect tournament, when he would have been forgiven for being quick to the exit — especially on a Saturday evening before an off-day in one of Michigan’s most pleasant cities.



Doing just a bit more than might have been expected has been an emerging theme for Seider, though, since he was drafted sixth overall by the Red Wings in June.



Some of that was inevitable because so few had watched him extensively while he played for Mannheim in the DEL last year, but as Seider makes his first meaningful impressions on the NHL prospect circuit and on his own coaches, it has...