Atletico did play something similar to what watford plays now, it seems atletico exposed some flaws. Cant help to notice how their backline holds position but not chasing movements of lfc frontline. Interesting
Yea, Liverpool lack the technique to really unlock a tight deep defensive block that doesn't make silly mistakes. Against this type of setup the technical limitations of players like Henderson, Milner, even Wijnaldum or Fabinho becomes more apparent. They do not have the required set of skills to play through balls when surrounded by players. So, what they do most of the time is bring the ball wide and play on the wings. Which would be fine if they had a killer 9, but all their front men are small-ish players who like spaces as well.
Don't see Liverpool creating much danger in when the box is packed with players. They thrive on pressing teams and playing the ball fast in space immediately after they recover the ball. But if teams refuse this game of transitions, end to end stuff, and default to a deep block, and they have the defensive solidity to hang on, Liverpool are in trouble.