Long term I see Foden and Grealish as dominating that left side.
I think I'd prefer Foden starting LW over Grealish simply because I think he is more explosive and Grealish can be more Bernardo-like in midfield and help us retain possession.
But during games they can swap and now we have Cut inside Grealish on the wings and Foden midfield (who is comfortable there) and you get a different dynamic.
Grealish will learn and develop over time, not arsed about this early learning process, Pep will sort him out.
I think I'd prefer Foden starting LW over Grealish simply because I think he is more explosive and Grealish can be more Bernardo-like in midfield and help us retain possession.
But during games they can swap and now we have Cut inside Grealish on the wings and Foden midfield (who is comfortable there) and you get a different dynamic.
Grealish will learn and develop over time, not arsed about this early learning process, Pep will sort him out.