Tevez and Marchisio was in an amazing form so Pirlos absence (and Llorentes terrible form) wasnt felt.
Pirlo (when on form and 100% fit) still is important for the team. i agree with Hist on this. however, at the moment, Marchisio has a great run of top performances so its hard to ignore him. he is one of our best performers this season. curently he is ahead of Pirlo (rightfuly) but that may change during the season (injuries, form).
also, id like to see more of a 4 man backline in the coming matches. no one can convince me that a defense of Evra/Asa-Chiellini-Bonucci/Ogbonna-Licht cant handle mid/low table serie a teams. and when Barzagli is back i would make a permanent switch to a 4-3-2-1. it would give more playing time to Coman (and Pereyra/Gio) and would make up for the lack of creativity that brings not playing Pirlo. i have a feeling that the Marchisio-Pogba-Vidal midfield would be even better in a 4-3-2-1 with Tevez/Coman - Pereyra/Gio and Llorente/Morata infront