Diego Simeone will try his best for his club to draw tie with Inter Milan and probably win but it'd all in words, let him put in the actions. Simeone Inzaghi have made plans for his victories in matches and aiming to reach the final again and this time, it wouldn't be just a final but a top one. Atletico madrid messed up in the first leg against Inter Milan, currently the top clubs comes with decisive points but trembled upon the feet of the Italian side. Diego Simeone must into the weaknesses of his team because everything is falling off balance.
Diego Simeone's Atletico Madrid is always dangerous.

They couldn't show a good performance in the first leg. I assume that nobody would deny that. Simeone was okay to get even a draw to go more attacking in the second leg. But Inter still got what they wanted from the match by one goal.
Inter have a good advantage in their hands now. But there is still a really tough match waiting for them. Inzaghi rested Lautaro and had some starting eleven players on the pitch for 60 minutes in the Bologna match. I think Inter will fight really strongly in Spain as well to advance to quarter finals.

I like them more in terms of defending and attacking now.
Dangerous? What do you mean? Dangerous and they couldn't get three points out of the game against Cadiz yesterday? They had chance to prepare well ahead of the clash between Inter Milan. I'm afraid they can't get to qualify for the next round. Inter Milan are by far the best between them.
I'd Atletico Madrid attacks Inter Milan, they will get the better of the game and exploit them massively. I see they also dropped some of them best players during that game so they could be with fresh legs.
Bologna did well, infact Thiago Motta and his players have also worked hard, it'll be great to see them qualifying for the Champions League Competition next season.