Puljujarvi is an interesting change of scenery candidate imo. He's still only 24, can skate, throws his body around and while his numbers are lacking this year, he's down to about 13 minutes per game, has a shooting percentage under 3% and still has a corsi well over 50% (albeit more OZ starts than Kerfoot). As for Kerfoot, despite playing multiple games in top 6, including on Matthews' wing, and averaging roughly 15 minutes, he has zero goals at even strength and a total of 6 primary assists. Puljujarvi has 4 primary assists and an actual even strength goal. I think it's worth a straight up swap for the Leafs, anyway, especially since he's still an RFA next year.