There are some subtle tactics at play in our excellent defensive league-leading performances. As has been pointed out previously, the way we try to get possession back is not just chasing the ball, it is intended to reduce the options of the opposition, which in turn blunts attacks. Defenders are rated, by some, on the last-gap sliding tackles often high-lighted by pundits , Pep though, prefers that the situation does not arise. Marking of the man and the space is how we stop it before a tackle is needed. Stand too close, prone to getting turned, or the ball in behind; too deep , may as well not be there. The best defenders get it just right most of the time. For my money Lahm made it look easy, obviously it isn't or they would all do it. Awareness and anticipation can be improved by coaching and playing with top players, and imho is the root of Pep's genius.