Milan and Juventus may only try to improve their standings as well as chasing the top 4 and for the championship title fight can only be continued by Inter Milan with Napoli who are currently at the top of the standings and in second place, I think Juventus and Milan are experiencing stagnant condition with no significant improvement now.
There are still many match, don't be too pessimistic because surprising things can happen if it only to occupy the top 4 later.
I just checked the table to see that Juventus is on 5th position with 37 points, two points behind Lazio. Since Juventus is a strong club, they will likely overtake Lazio with time, because I don't think that Lazio will be able to maintain the 4th position till the end of the season. Perhaps, the fourth position is open for the clubs on 4th-8th position on the table currently due to little point difference.
If you look at it, it is not that far behind, if they win two matches and win with good performance, this gap will disappear. Juventus' performance has improved and Lazio's performance will also increase as they will not allow Juventus to succeed, which could see a significant difference in position between them. If he doesn't work hard, then if lazio works hard, he can be in a better position, but the problem for him is that his next matches will be difficult and he will face losses. Lazio have to improve to be able to play well and win matches but they won't let Juventus succeed and we can get interest between them which is enough for us.