Yes, I support this post 100%. Chiellini is VERY PRONE TO MISTAKES. I can't believe how he has the reputation he has (GolTV commentator: "Some in Italy think he's the best defender in Europe right now"). He is physically solid but he more or less always makes at least one silly mistake per game. Sometimes it costs a goal like today.
Chiellini is not superb. I wouldn't have him as a lock for the starting line-up for years to come. Next year I'd love to see not one but two great central defenders join us if that was at all possible. Chiellini needs some serious competition. Ok, end of rant.
Melo hasn't been very impressive but give him time. He has the capability.
Gio needs more calmness in his game. He can be superb but it's obvious he needs to mature --> a lot of playing time for him this season, please.
Amauri and Camo have been great. Also Grygera and Sali have surprised me.