I think some of the critisism I've read is a bit harsh.
We played Liverpool at anfield where we never win. They are also the leagues top scorers yet they played with no striker and put 10 men behind the ball.
There's a couple of donkeys at the back in Kolorov and otamendi and those two along with a few aging players like zaba, sagna and toure all probably need to be replaced but I'm sure pep knows it and the defence will get sorted for next season.
Aguero looks like he needs a partner or at least some real support from an attacking midfielder. He's far from past it. Gabriel Jesus?
It's disappointing losing and being 10 points off Chelsea but I honestly still believe that long term under pep were gonna be just fine.
I also think on reflection that Pellegrini actually did ok considering the defenders we've employed over the last 3-4 seasons.