With Keita, he was initially signed in the summer of 2017 and at that point we'd only just bought Robertson and Salah, and Trent hadn't fully broken into the first team.
I think back then, even probably the most optimistic figures at the club hadn't envisaged this team morphing into what it has - with the front 3 and the wing backs up and down the line. At that point Coutinho was still on our books too so we played a completely different system. it was six months later, after the sale of Coutinho that the team first started to take shape into what we see now.
Keita is a classic box to box midfielder who plays best when he's given a "free" role, I'm starting to think that with the way we now play, and the discipline needed to hold down a place in the midfield 3, that he hasn't had the chance to make that position his own as it basically no longer exists in our system