On balance, yes. Last 3 he's been awful.
But more concerning than that is the visible lack of chemistry he's shown with Malkin. It's worth giving a pair ten or so to feel each other out, but that's passed and it's not going that direction. Second line's possession and production is actually dropping.
Whether Dupuis is "a third liner" or "a second liner" is, and always was, the wrong question.
The right question is "will goal differential and zone time for his line be higher with someone else in his position?" In years past, with Sid, with what we had available to us or what was available at the deadline (Kesler being the
SOLE exception), the answer to that question was a resounding "
no" (have to sort to line stats).
This year, with Geno, it's more up in the air. They're at
52 CF% together and dropping (2 weeks ago, it was ~60%). I'm not convinced there's a player on the roster who can do better than that, but I also don't know that the second lines differentials don't improve with Spaling, for example. The results are not currently so great that it isn't worth trying.
The bolded is probably a fair point.
There may be nobody to work a give and go with, but what there is is more space high in the slot, most of the time, as those two are hovering below the dots occupying people. You would think a player like Malkin would be able to take advantage of that.