Think you should highlight the entire part of what Choulo said about Cahill rather than quoting him out of context with only "Gary really is a great CB". What Choulo said there is true anyway. When our game plan is being very defensive and play on the counter (e.g Barcelona & Bayern last season), Cahill will flourish mainly because he is an expert at throwing himself in to blocking shots. BUT whenever we attempt to play an attacking game especially against the better sides, his deficiencies as a defender are exposed as clear as daylight and in turn, will leave the back 4 exposed as well. Cahill is not defender to play against the top tier sides but rather against the 3rd tier or lower sides. TBF, Cahill wasn't the only one who looked shaky in that 1st half against Barcelona. The whole defence or rather the whole team did. There wasn't any real organization to our defence, midfield, attack. We were just lucky that Barcelona's finishing was hopeless and thanks to some last ditch clearances and tackles in the end.