Atletico who think their look strong at home actually have to make mistakes in the first leg by playing defense, honestly I think Atletico Madrid can even have a chance to be able to equalize the score or even beat Intermilan in that game if they do not defend completely, like you said, Atletico now is not Atletico a few seasons ago who did have a balance between their forwards and also the backline, For now I also don't think if Atletico will be able to overcome the attack carried out by Intermilan later, let alone they are burdened with 1 goal on aggregate.
If we compare Atletico then and now it is very different, Atletico who used to often park the bus when indeed they were superior both home and away, while Atletico now precisely every time they play with a team that is at the same level as them at the opponent's home, they will choose to defend and just counterattack to keep the ball away from their defense and we can see this happening in some important matches Atletico.
In the second leg match maybe Atletico will try to attack although it is also possible that they will still defend fully, but when I see Intermilan who are still playing impressively in the league when they are close enough to the Scudetto and without caring they continue to play attacking when facing their opponents, and that's why 1 goal aggregate may not make Intermilan defend and will instead continue to attack Atletico to add to the aggregate victory in second leg match.
This is one major reason why you see them all calm and trying to hold up the defense line like they did in the first leg. The Athletico mAdrid team have zero urgency to progress the game forward or play through the lines and this will keep them lacking when opportunities present itself. As this is the best way to hit on Inter if they really want to get anything off this match. The Inter Milan squad are a very paced squad and have strong attackers who can be able to break between the lines and they’re also organized defensively as you can see how the played in the first leg. For this reason I’m sure banking on Inter again to get the win.
Inter will sure win this as they’re not looking like a team satisfied with the 1-0 aggregate score as they want to also hurt the Spanish team the more and they’re very balanced to do so and will do so. Athletico will have to come out and attack and try out their lucks but they must do so being wary of the fast pace attack of Inter Milan.This match like I said I think will be going the way of Inter and nothing is going to change that. Inter can be quiet and still dirty when the match wants to go dirty and they’re a team that can match Diego Simeone toe for toe. The defense of Athletico isn’t as strong as we know it to be and can’t be fully relied on.