IMHO, Man City should really follow the same path as Real Madrid under Florentino Perez (2nd term) about never re-signing aging club legends on the wrong side of 30.
They have never even entertained the idea of bringing in back the likes of Cristiano, Benzema, Sergios Ramos whom all wanted return to the club.
They re-signed Joselu on loan last season to help them win the league and champions league.