Since when did Frattin become a defensive specialist? People seem to think he's this incredible two way player. Not the case. He's maybe a little better than Kadri defensively but not by much, Kadri dives for pucks and breaks up high risk plays better.
Aside from putting up more points than Frattin in both the ahl and nhl Kadri also draws about 5X more penalties, takes faceoffs better and runs guys over just about as consistently (he's an opportunist but he'll level a guy). Not saying Kadri is a better hitter but giving out big hits that put the fans on their feet is part of his game.