Comparing your backs to ours.

Better Full Back
Better Wingers
Better Centres

It's not that diffucult to explain what "backs" means!

If that's what could happen, what do you think will happen?

If only i had a crystal ball !

I guess much of it will depend on any developments with Darren Lockyer.

Dobson and Murrell are hopefully an axis Rovers can build around long-term. Fisher is contracted to the end of 2011, iirc ('confirmed' by wikipedia), so would expect him to retain a share of the hooking role with either Spaven or Hodgson. SO will be the most interesting one IMO - whether, if Cooke leaves, I'anson does enough this year to be seen as his successor, or a replacement is brought in from another club.

Is that on last seasons form which has now finished or overall better players?.

Better players

You have still not explained why.

S.Briscoe >> Tansey
Fox > Calderwood
J.Webster > Yeaman
Welham = Hall
Colbon < T.Briscoe

However, that's based on what your backline might look like.