Trotz's quote (below) relates to what I've been mulling over: Players don't know how to check, and the league isn't good at giving guidance. Am I wrong?
"I think years ago the line was a lot clearer," Predators head coach Barry Trotz told Vancouver's Team 1040 on Wednesday. "You look at the old vintage games on the hockey channel and if you crossed the line, you knew you crossed the line. I think the line has moved more and more, there's bigger hits, there's guys wearing shields and helmets, and all that protective gear and people are coming at each other. I don't think people in junior know where the line is, I don't think people in the AHL know where the line is, and it's starting to get gray in the NHL."