The biggest problem is with our play from the back, distribution and the general shambles of our defence.
And that comes from Lucho's failure to recognize a simple fact. That there are, in principle, 3 ways to play from he back against a team that puts pressure on you with many players playing in advanced positions.
1) Play a more fluid system and move around more so you can make it harder for the opponent to stay close to you in order to block a pass in your direction.
2) Form a shorter team and drop the frontline closer to the backline, so players from the back can also skip the first station ball towards the midfielders if possible (who are being marked and can't receive), and play directly to MSN. Having more options to pass makes the pressing more easy to beat.
3) Keep a long team and play long ball from defence. MSN can either win the duel, or press on the 2nd ball and maybe win that one.
At the moment we're not doing anything. When Bilbao presses you with 5-6 men, it's clear that there are 3-4 of your players who are guarded by 1 opposing player. We just have to find those players, and stop passing the ball to the ones that are marked.