Ake has not made more mistakes than Walker, just a fact. But it's not the back 4 that's been the big problem. It's how we keep setting up in front of them. Rodri has been left on his own more than once in big games this season. Bernardo is clearly better out wide on the right these days than in the "Gundo" role. Foden can do it very effectively, albeit differently, and that's been proven time and time again this season. Kovacic has been rock solid overall supporting Rodri. Alvarez did a good job when KDB was out, but when he's asked to play anywhere else on the pitch aside from as a 9 or as a second striker it just doesn't work. With KDB playing basically as second striker himself now Rodri needs better in support than Alvarez. Either Kovacic due to his excellent technical ability or Foden due to the fact that he's so good on the ball and forces the opponent into a much greater defensive posture. If Pep keeps playing Alvarez in the midfield or on the wing in any remaining critical games we will not win anything, simple as. Pep being the greatest club manager perhaps ever notwithstanding, I am praying he doesn't choose this hill to die on. IMO we are still the best squad in Europe and I see no reason why we can't win the league, the CL, or both in the next few months.