I agree that Southgate is the main problem. But I think Foden is a bit overrated, because he plays in a team of geniuses he gets away with a lot. Was it Southgate that made him play every dead ball situation, or was he demanding it as his right?
As the stats show, Arsenal have had the highest number of goals from corners this season, but neither Saka nor Rice were allowed to take a single one.
And Saka was the only outfield player to play the full 120 minutes, and was expected to play in about 4 different positions...