Wow, really unexpected new.
Genia is a top player, whose talent can solve a match and will surely add some value to the Force.
However, if the Force aim to be a winning side or at least to gain the access to the play-offs (I'd say "look at the Brumbies") Genia alone is not enough and maybe they don't even need other big contracts, just players who can play well the Gilberts that Genia will give them. In my opinion, the Force already have good forwards, the challange for them now is to find a good flyhalf and a couple of good backs.
If they can't plan, Genia will be just another Giteau, Mitchell, O'Connor...