That's what I was thinking.Very true. But when Aguero is fit. You can move Jesus to LW with Aguero up front. I think Aguero, Jesus, Sane, Sterling + Mbappe, would be too much talent for 3 positions. You need someone who can play wide but also in the middle in the Silva/KDB position. That's my thinking anyway.
But i don't know Pep's thinking. Maybe he signs another pure winger to cover Sane/Sterling....while ditching Navas and Nolito.
However someone like Julian Brandt might be the best hybrid option. Can play AM and Wing easily.