i think that the best thing to do is to stick with a 3-5-2 but make sure that the 2 wingers (lic and asamoah) make sure that they do their defending job as well as attacking just like ribery and robben did in the champions league. that was the reason why bayern was so good defensively. don't get me wrong, our defence is probably the best in europe but additional support will certain help to reduce penetration. so we use a 3-5-2 formation which will be transformed into a 5-3-2 when lic and asa get back to support defence.
for example:
Normal formation:
Buffon
Barzagli bonucci chiellini
lichtsteiner vidal pirlo marchisio asamoah
llorente higuain
Defensive formation
Buffon
lichtsteiner Barzagli bonucci chiellini asamoah
vidal pirlo marchisio
llorente higuain
This is what Bayern did:
Normal formation
Neuer
Lahm Boateng dante alaba
Schweinste martinez
ribery muller robben
Mandzukic
defensive formation
Neuer
ribery Lahm Boateng dante alaba robben
Schweinste martinez
muller
Mandzukic
You can see that the wingers are used for defensive work so bayern will have a 6 man defence and similarly juve will have a 5 man defence which is enough to defend any team!
Eitherways if we want to use a 4-2-3-1 we would have to get attacking winger/strikers but llorente, higuain and jovetic are all central fordwards which makes our this formation unsuitable for us.
what do you think?