Its not only about how we play which is an important factor but they seem better in every position propably.They have better defense for sure,our midfield is very weak and cant provide defensive cover besides Busquets that is his job..you know the restFurther, the philosophy of Bayern makes them at least 5:4. They all work in defence, Schweinsteiger and Martinez run the hell out of their lung and for people who don't know anything of football, Ribery and Robben sometimes seem more as RB and LB. Even Mandzukic is very much involved into their pressing.
As great as our players are individually, our team play consists of passing, not of pressing and defending in a collective. Busquets is great but last season he did not managed it well to stay more defensive. Lahm and Alaba were involved in the attacking play just like Alba and Alves here but the difference is that Lahm and Alba are also great in defence.
Xavi, Messi, Iniesta are awesome players, everyone admits that but their pressing is not that good. Messi slowly walks back in the midfield after an attack. Iniesta and Xavi just wait for a ball to come.
Bayern have an massive advantage against us but I'm glad that it is not up to the quality of our players, it is the philosophy to win a game only with passing and ball possession. The pressing must be improved and every player must hold his position, then we can face Bayern with a serious chance to win.