Here's the GdS article making that claim:
http://www.gazzetta.it/Calcio/Squad...data-ogbonna-jovetic-zuniga-20686109684.shtml
They call it 3-3-4, but all they are speaking about is Juve's wing-backs playing a little higher up the pitch, as they are still speaking about Asamoah being the 'left-winger' in the system.
Pretty much a nothing article, because Juve's wing-backs already play very high up the pitch when Juve are in control of a game.