I need to see more O out of Lemieux before I call him more than a 4th liner. Guy has 3 goals, and that's with playing on the 2nd PP unit as well. That's 4th line production.
I understand why we like him, this team has been so soft for years that having a player with his grit very much stands out, but his production is 4th liner. On a very good team, that's where he fits.
Now maybe he has another level, but right now a 10 goal guy with grit says 4th line player on a very good team to me. And for what it is worth, that is a valuable role IMO.