Our biggest mistake was letting them play.

No closing down, no hassling, no pressing. Nothing. In some games we do this for 90 minutes, in others we don't do it at all.

You can't make a tackle if you're just ball watching. Watch Man City, when they lose the ball they hunt you down until they get it back. Granted we don't have the ability Man City players have, but we should at least be trying to win the ball back.