Don't buy Into this idea of blaming everything on the defence either, yes over the two legs there was a few cock ups that could be avoided but thats always going to happen regardless of personnel, we had 3 defensive minded players on the pitch tonight, of course they're going to struggle at times.
For the defence to play well we need to play with Intensity at all times out of possession. First half we did that and we looked solid at the back, they couldn't get our and when they did the defence snuffed out the out balls and we recycled possession and kept the Intensity up. second half, much like the second half against united we lacked any intensity with or without the ball. Without that, we're extremely vulnerable just due to the way we play as it gives the opposition time on the ball to pick the right pass and get players forward to mount an attack.
We can maybe put some of that down to tiredness but if that's the case it's peps doing, many questioned his lack of rotation during the season for key players in games that we should manage without them. I think the derby was the first league game KDB hasn't started all season and he looks visibly knackered of late, there's various other examples too without going too far into it, I understand some players had to play a lot due to a lack of options and some not performing but the likes of Gundogan, Bernardo and Danilo were vastly under utilised in the first few months of the season.