I know Song before he came to Barca. We don't need a DM that makes a good game and is mediocre in most of them.
Right now I miss Yaya, he would've been very good in our team, the problem being he is in Manchester getting paid lots of money even though he might well be the most important of that team.
Even if I didn't know Song, one game like this one clearly means nothing, especially when Bayern didn't even need to sweat, if it was the 1st leg, maybe it was a bit different.
If we keep signing players like him and be happy he puts one good performance an year, means many just accept we should lose from time to time like in these SF, which shouldn't happen.
Ture, we should start thinking of changing the system more in important games, and 2 strong players as DM would've sounded better against Bayern, if it was Yaya alongside Busi it would've been amazing.