4-4-2 / 4-3-1-2 / 4-2-3-1 / 4-3-2-1/ what ever the formation the coatch will use
it will not work,why,there is alot of reasons.
1.the full backs RB&LB,modern football depend on full backs,especially with formation like
4-3-1-2 or 4-3-2-1/ look to inter,barca,man u,chelse,and look to juve full back.
2.THE MANAGEMENT,when juve management start to build a team with formation
like 4-3-1-2 then they have to do thier job properly,not ignoring the defence by buying cannavaro and grosso,if any one notice that juve repeating the same mistakes that milan did in the past,milan who used to play in 4-3-1-2 system and win the champions league with it.
dida
cafu--nesta--maldini--serginho
gattuso--perlo--seedorf
kaka
sheva---crespo
this is milan formation thats makes them in the top of the world few years ago
the same formation makes them the bigges losers when the defence line changed
by players like oddo,bonera,kaladze,favalli,if juve want to play in 4-3-1-2 system they have to rebuild the defence line,and stop blaming players and the coach.
and if the secco and blanc cant find good full back,its better to change tha whole system to three defenders.