What I liked watching Bayern is no crap or no reinventing wheels type of football. They play quite fast, dynamic, move as a unit, compact and that's it. With that type of play they play to their strength, they isolate wingers allowing them freedom to attack and dribble, they play close lines allowing midfielders open solution, and with compact lines allowing defenders easier time.
We did improve our attack fluidity with Flick (not currently but in general). Our midfielders and wingers looked crap playing slow static football but when we play fast we score for fun. But, it is like a strange fetish that every coach want's to reinvent football when he is in Barca so we play this crazy type of defending. Notice yesterday how Bayern can also play high line when needed or when attacking part is pressing high. With that they keep compact lines but those lines move back if needed.
Now to our way of defending. Opposition easily breaks our low intensity press and has 5 bodies close to mid line with our defenders half a meter from them. Now they have 5 or more bodies with tons of space to run to and we either manage to catch them offside or it is 1 on 1 vs goalie. Maybe we should reinvent even further - we could try playing without goalie all together.