Has an incredible ability to play well but still cost us goals. He will play very well for 89 minutes but still cost us a game.So it's not his ability as much as concentration, which can be improved. He's still on an upward curve from the rock bottom that was Chelsea.
Blaming him for the first goal is a bit unfair, Kolarov was the right side of Alli, and just got done by a brilliant cross.
Otamendi will be brilliant, being aggressive and intercepting lots of passes, then make a mistake or be out of position and cost us a goal.
It happens too often, Pep needs to be ruthless and make it clear that's not good enough.
How much has Otamendi won in his career out of interest? Seems to me like a good player who's not quite at the level to win things.