Beau Ryan would be worth a look at. With guys like Moltzen, McKinnon, Tuqiri, Tuiaki, Lawrence, Ayshford.. Ryan seems to be the odd man out and will struggle to find a spot in that backline. Definitely a capable replacement for Vuna. Also as mentioned somewhere in another topic, Justin Carney could be a top replacement for Doogs.
So the Backline in 2011 could look like this:
1. Kurt Gidley
2. Akuila Uate
3. Junior Sau
4. Justin Carney
5. Beau Ryan
6. Jarrod Mullen
7. Beau Henry
If we can snare Luke O Donnell and an established prop, possibly a Jason Ryles who I think is off contract? We will look like a pretty decent team
8. Ben Cross
9. Isaac DeGois
10. Jason Ryles
11. Cory Paterson
12. Zeb Taia
13. Luke O'Donnell
14. Matt Hilder
15. Richard Fa'aoso
16. Evarn Tuimavave
17. Mark Taufua