He never was the best full back at City, let alone in the world, as some are claiming. He was very effective breaking through into midfield when it worked, but IMHO a full back should firstly and foremostly be able to defend. From day one he was never able to do that and there have been many times we've been left exposed because of it.
A good player, of that there is no doubt, but not that good that we can't move on without him. Particularly so if the stories about his bad attitude are true. Onwards and upwards Blues.