He upped and left the shit company to work for Milan? midtable Italy?
nope.
Enjoyed the great times at City, when shit hit the fan you'd want your senior players to stick around be the driving force in the changing room, around the training ground, around the squad, even if they couldn't do it on the pitch.
Instead Walker insisted on moving on. As far as I understand he just wanted to jump ship.
It's absolutely different from me working in a shit company and he seemed to be ok with his boss for the past 8 years