It's a hard one in reality.
No one is stronger than him on the ball from our backs, his passing is very good. But then when it comes to defending or emergency situations, oh mah lawd! He is epi-bad at times!
You always see Barza or Chiello rushing to the rescue. If he wasn't back there, we'd find it much harder to build from the back. Chiellini, Barzagli and Ogbonna are no where near him when it comes to passing the ball around. As an example, Barza gave the ball away unnecessarily a number of times in last night's match.
Touch choices I tell ya!