I agree with you that Juventus can't rival Inter Milan for the Scudetto title this season because of their point difference in the league table. Also, Inter Milan is not looking weak; they are winning their matches in the Serie A table, which makes it hard for them to get a rival this season. Just as you said, Juventus should focus on maintaining their current position in the league table so that Bologna will not overtake them.
Tomorrow Juventus will visit Torino and in this match Juventus should try to win in order to maintain their position from being chased by Bologna and Roma. Because Bologna who will host Monza and Roma who will visit Udinese will also try to win in order to narrow the gap with Juventus if Juventus cannot win at home to Torino tomorrow. That's why Juventus must be able to win at home to their opponents in order to remain in their current position even though they still have to win the remaining matches this season.