Strongest XI on paper:
Goalkeeper - De Gea
Back four - United
Midfield - Equal
Front three - Arsenal
Ramsdale
White Saliba Gabriel Zinchenko
Partey
Odegaard Xhaka
Saka Jesus Martinelli
vs
Rashford Martial Antony
Eriksen Bruno
Casemiro
Shaw Martinez Varane Dalot
De Gea
Although we won't have our strongest XI available to us tomorrow, when you look at both teams, they're few and far between in regards to ability.
Significant difference is, Arteta is three years in and ten Hag has only just started. With a few additions next season, I think we'll be well on our way.