Pep has set us up to control and attack. When we control the ball, we don’t allow the opposition to attack and our mobile, creative and skillful midfield is able to do their thing. When we lose the ball, if we don’t win it back quickly, we always look like it is “all hands on deck” because we are never sure how their attack will end, because unlike other teams, our midfield is an all out attack midfield, with the sole exception of Fernandinho and whomever else makes a SERIOUS effort to defend.
While I think the all out attacking nature of our midfield is our defensive Achilles heel, it is something I feel is better now than it has been in the past. However, more worrying to me than that is the fact that we seem to look a bit stale and plodding at times. In the Hoffenheim game, the number of times we passed it back and forth amongst the back line, with zero impetus to make any forward movement (with or without the ball) was infuriating. Time ticking away and no penetration, no new ideas, no rhythm to our play. We looked stale and bereft of ideas (...and then Merlin popped up and finished the game for us!) However, lose the ball while we stroke the ball back and forth, and the best midfield in the world is stranded upfield with no hope of assisting defend.
Against the best teams, we need to have control of the ball and, when we lose it have a whole team defence to help the back four. At times, we are a man or two down against the quick break. As Pep has said, it is what it is and sometimes we will be exposed. The best teams will capitalize on that. So, will the tiger change his stripes? I doubt it! So, the defence has to be the absolute best it can be...in all 4 positions. That was lacking in Hoffenheim, because Laporte is an excellent defender, but not a CL left back.
Once you get out of the Group Stages, it is all about clinical finishing. Every team has the ability to hurt the others, but those that take the chances they are offered move on!