I agree with the last part about other players being sold instead, then i'll be looking towards the likes of Camo, Amauri and Maybe Trez and Sissoko.
Onto the bolded part.
Our backline not clicking is the biggest understatement of the century, it is a total trainwreck, and Buffons 'calming influence' has had no effect whatsoever, if anything the trainwreck is influencing him negitavely.
I'm not saying that the only option to sell him, but given Buffon's status, value and marketablity, his sale would go a long way into giving the whole of this squad a well needed facelift.
Imagine, how well rounded our defence and Gk would be
Handanovic
Caceres Tasci Chiellini Kolarov
Plus there would be excess cash to spend ont he team further up in the field.
If a good offer came along, I think we'd be stupid not to consider it