When Amo was good he was really good but he was often a complete bombscare at the back. He did improve and towards the end of his Rangers career he seemed to become more consistent. When he concentrated on just defending he was excellent, but he was liable to think he could dribble and pass like Zidane. Weir has always known his abilities and limitations. Weir is a great defender and doesn't try to do any more than that. Amo thought he could crack in every free kick like Roberto Carlos.