If Malifa is getting started, then it's...Malifa. If not...
We don't have great goal kicking here in America. I've played both in the Super League and Division 1 here in the US, and we just really, really lack at kicking. Malifa is hot and cold. When he's hot, he's good. Haven't seen him hot this tournament. http://en.wikipedia.org/wiki/Valenese_Malifa
Malifa is a good kicker, but around the time warm-ups started prior to the cup he's been pretty shot. He's lost his place IMO, but what else does the team have? As O'Rothlain has pointed to, kicking is the Eagles' weakest point.