If I were Xavi, I would play something like this against BAyern:
This is the 3-4-2-1 he played against Benfica with some changes:
----------MATS
---Araujo--FDJ--Eric--
Dest---Busi--Gavi--Alba
-----Nico/Cou-Memphis
----------Dembouz
It's crucial that our striker has the ability to make those timely and lightning-speed runs in space, and be able to beat his marker in 1v1,
and currently the only one who combines both characteristics is Ousmane
When we saw this system vs Benfica, Memphis does not have the speed to break in transition
On the contrary, as the left 'interior' (which is really an AM in Xavi's setup), he can be effective in finding Ousmane in space.
Nico is also good offensively. Even Coutinho can play a role there.
The only other change there, is of course getting rid of clown Pique from our backline.
Frenkie was phenomenal as libero last season, and can plug holes against such a dynamic opponent like Bayern
I don't see it, unfortunately, especially as Xavi seems to not like Dest as RB
PS: I don't think we can win or even draw.
But with this system we have a fair chance of not getting humiliated, and scoring at least a goal