there is no point in selling chiellni because it is hard enough to get one good cb, let alone two.
besides i think chiellini's game can be improved when you have midfielders that make themselves available for the pass, which pirlo and vidal will do. this is also the coach's responsibiltiy in training.
i doubt we are going to get a cb anyway. i think our market will end with the purchase of a forward and maybe a winger, if we are lucky. it will probably be us getting rid of players after that.
i think conte is okay with having sorensen and barzagli as backups for our main two. and considering we are only playing serie a and coppa, it is more than enough in quantity even if the quality is questionable.