I do agree that Juventus looks like the biggest candidate, they do not have any European competition games that they have to worry about neither so all the players they have are rested and should win the game they have against both Lazio and whoever comes to them at the finals as well.
I really think that it could be very possible for them to do the double, they are very close at the league and could win it, all depends on Inter, and they should definitely win the cup as well because there aren't that many teams there neither. I agree that it is going to be something that would matter, and should be a point of discussion as well. I am not saying that we are going to end up with anything easy for them, but it could be done eventually.
The cup matches are very far away, the game with Lazio will only be in April, I don’t like to make such long-term forecasts, but at the moment Juventus is capable of winning the cup, among other teams they look the best.
In Serie A, they will also wait for Inter's mistakes to get ahead of them, but at the same time it is very important not to lose points yourself. And in a few rounds, at the beginning of February, they will have to play away against Inter, this could be their most important game of the season, if they lose to Inter, they will make their task more difficult, although I doubt that everything will be decided only in this one match, but its importance will be very high for both teams.