Lessons learned from Juventus-Inter

We lost an important match, ok, but now we must avoid the worst problem: thinking we are not as good as we thought. We do are good, but we are not as good as Juventus, simply. Anyway, these are some lessons we have learned from this match:
BIG MATCH: We haven't played these type of matches since 2011 when we won the Coppa Italia final and we lost in the Champion's League. Since then, we have played a lot of matches that we called "big" but they weren't "big", moreover, every time we played a match that could be "big" we lost (think of the Europa League's matches, for example). The answer is simple: we don't have the habit to play these match when you don't have to make any mistake, you must be concentrated for 95 minutes and all of your players must play at their best. Juventus knows how to play them, because they have played the Scudetto for 5 times and because they have played a lot of important matches in the Champion's League against top team such as Barcelona and Bayern, but we don't.
We need to improve this aspect because next year we'll want to win the Scudetto and every match will be a "big match".
TACTICS: The defense with 3 players has worked fine. Murillo, Medel and Miranda have played a good match and this explain why Higuain or Mandzukic haven't played a good match. Not only, D'Ambrosio has played a good match against Cuadrado and this means he can play well on the left side as well: he isn't a winger so we can't expect to see him crossing the ball near the opposite's area, but he is important in that position because he can protect Perisic (more than Ansaldi).
Unfortunatelly this means we lose a player in the midfield, but this also means that we can play with three offensive players (Gagliardini, Joao Mario, Brozovic). Problems are that I'm not sure Candreva can cover the whole area as a wingback, and Perisic is a winger and not a withdrawn striker. I don't know if we can play with a 3-4-2-1, because the actual team is perfect for the 4-2-3-1.
THE GAP: It's still too big. We have the good first half in our eyes when both Juventus and Inter could score a goal and when Inter played at the same level and it could shot at least one of the three penalties that were denied bu the referee. However, there is also the second half, and in the other 45 minutes, we didn't shot a single time toward Buffon. This is not a performance by a top team. We had the ball for a lot of time, Juventus decided to play defensively, so we had to shoot and to score a goal, but we didn't. This is the gap: Juventus has played a normal match until the goal then it has controlled the match and Buffon was like a tourist in the second half. We must play for 95 minutes.

@Inter.it