Ill tell you how you can know this.
Cause the ball isnt even getting into those positions where those players can do damage. Teams press and we cant get through it...our wingers/wide players lose the ball, our keeper makes everyone anxious so our defenders cant pass out from the back, Haaland is completely isolated playing long balls up to him as a result of the previous point. We have no physical presence in midfield. Plenty of evidence to know Sav just disappears in games like today from last year as well. Our fullbacks are not keeping the ball and cant play balls into midfield well enough as well.
Foden/Cherki/Sav make ZERO difference