He did fulfill his role better than our two other central midfielders.
He can't be blamed that Marchisio can't play Vidal's role. A tactical error by Conte. Giaccherni - Marchisio - Pirlo - Asamoah - Caceres would have been a lot better.
Giaccherini's movement, workrate and build-up with the forwards and De Ceglie were actually decent, even in first half.