For me, I really hope he changes his ways this season as playing the same way we did last season will surely get us nowhere. We managed to win despite playing badly last year because we were up against inferior teams however, we can't play like that in the C.L.
With Giovinco around, I think Ranieri should try giving him a more free role in midfield rather than confine him on the left wing. He should play right behind the strikers as a traquerista. Unfortunately, Ranieri has never used that type of formation and he would probably go for the dull 4-2-2-2 formation with no creativity or attacking flair whatsoever.