I think for Mancini to keep his 25 players and stick with it. Nobody of them will allow to move this season. Toward end of this season, he can know who will be permanent starting line-up, who drop to substitute.
If Given or Joe want to know their future, just say no decision until end of this season.
All 25 in Mancini list will be here to try in who suit most to the plan, teammate and new system.
Robinho, Bellamy, Ade, SWP to name the few, has to be here for this season to try their best. And in middle of season I think Mancini can say who is his faverite in each position, then who cannot make it to starting line-up can leave if really want in next summer.
This is the best for the club.