I'm sure Paul Williams will be kicking as he's the only established goal-kicker in the starting XV (as far as I'm aware) - Gavin Williams is often the main goal-kicker for Samoa, but Paul has taken his spot...
I agree entirely with this assessment - the Samoan team is full of quality individuals, however the majority of them have played very little rugby together. If they could keep their team together for 6-7 games it could evolve into a very dangerous team, but at this stage they may be relying on the individual brilliance of the players involved rather than team play. It is hard to read how this game will go - it wouldn't surprise me is Samoa pulled off the upset, however I'm going to predict Ireland will win by 15 points.