I don't think Akanji is a world beater but he still looks twice the player that Khusanov is imo. Coming back from his first decent injury since arriving here, Akanji was always going to be a touch rusty. Only 29, he's got a few more years left. He's played 48, 48 and 35 games over 3 seasons, that's reliable enough to stick around.
I agree on Ake and Stones, 1 has to go but I don’t think both, both levels ahead of Khusanov but can't say fit. We still need to meet the homegrown quota and have to be wary about losing that winning mentality within the squad. Ake has averaged 28.6 games a season over 5 years, Stones has managed 28.8 games over the past 5 years. It's a tough call on those 2.