“There was an episode that served as a watershed in the match: the penalty which was awarded to Roma and gave them the possibility of extending their lead to 2-0 after 38 minutes of the first half.” This is what Gazzetta dello Sport write today when they analyze the game: “In fact, the correct decision would have been a free kick just outside the penalty area as the foul (apparent) by Pereira (yellow card ) on Gervinho happened about 15-20 centimeters outside the penalty area. The error can be justified by the speed and the minimal distance but there is a but: Tagliavento, who was not in the best position, whistled and pointed directly to the spot. Immediately after he stopped and showed the yellow card. How come? The referee relies on Guida, the assistant referee who was positioned right on the line and is therefore ideal to assess the situation. He doesn’t do his job and contributes to Tagliavento’s mistake. Other than that, the referee from Terni did a good job.”
Source: fcinternews.it

well,that penalty wont happened if consentration maintained.
How can they say “other than that, he did a good job”. If you award a non-existing penalty in a game, you did NOT do a good job.