Both Rugani and Caceres were horribly exposed throughout the second half and had absolutely no protection.
They'll get the blame but on the first goal they are both scrambling to the left because we were opened up for too easily and nobody tracked back. Khedira was run away from, but Rugani/Caceres should have been set in the middle to head away. Instead both were pulled to the left.
Second goal, same scenario. This time Caceres is badly positioned and should have been defending the area around the front post. He isn't there because he is scrambling left, Rugani and Cancelo have to try to cover the middle when running back.
Third goal, there are countless errors there.
There were plenty of other situations where they were exposed. Parma just stuck Inglese up high and had Gervinho drop 10 yards back. We should have had a CM sit on that area.