Tbh I reckon you could give Barca a game if you meet this season. Wenger is not as stupid as Pellegrini when it comes to playing the most lethal attack on the planet.Erm, what have Arsenal had to learn? That we are a significantly inferior side to Barcelona/Bayern/Bayern? A lot of teams have been learning that lesson.
Liverpool didn't seem to learn much this CL campaign
You think you can get past migthy Monaco?Dzeko is a brilliant striker in the right matches. A game where City hardly see the ball and are playing Barcelona with a midfield of Milner - (one of the Fern's) is not the right match. He's not one to create opportunities for himself like Aguero.
I look forward to when Arsenal are the sole remaining English club in the CL this season. There will be blood. (Or an embarrassing loss to a club supported by white-collar criminals.)