I'm not seeing any hint of him quitting, so I might be right with City in the next 2-3 years will be in the mix as well.City’s biggest concern is Guardiola. Should he leave, it doesn’t matter which players are entering their prime or in decline, they won’t be as ruthlessly efficient in garnering 90+ points season after season, IMO. He’s the key to their continuing success, not the squad per se.
Unless....point deduction