I’d argue the two of them together cause a bigger headache as neither does great defensive work, both are best in transition and both can give away a lot of ball. Antony and Diallo today bring a different balance, composure and ability to slow and speed up the game when required, and both tend to be more careful in possession. We have too many players on the pitch this season who only appear to know one way and one speed to play at.
I have no issues calling a players performance shit (Garnacho today, Bruno v Liverpool), but I won’t blame a single individual for our problems whilst the entire team looks this chaotic. I’m convinced you could swap out Casemiro and Garnacho for Giggs and Keane today and they’d also look a mess. The problems are literally everywhere.