Agree with thisYep, Pep tried to learn from the league game, but tinkered in the wrong way, hence the weakness and confusion.
So he has demonstrated he can learn but he’s still got to make the correct changes, which last night he failed to do.
Last season I berated him for his lack of pragmatism when he continued playing his way with fullbacks that couldn't.
I think most of us thought some sort of tinkering last night might help to nullify the threat of Salah
However leaving Sterling out was not the answer. It did unbalance us badly all over the pitch.