Different situation.
Conte had obviously decided he had to play with a back four in that game.
With Lichtsteiner out, there wasn't anyone else to play right back.
I would also suggest Caceres' natural fitness may be rather better than Vucinic's, which means he can get back to playing that much quicker.
So long as Tevez doesn't get injured in the next couple of games, I see no reason to even contemplate bringing Vucinic back in so quickly.