The thing is they aren't strong enough in the attacking line. They can't score good amount of goals and this problem caused them to be out of the title competition quite early. I really admire their defending side but there is a serious level of scoring problem. 44 goals isn't good enough statistics while getting close to the end of the season. 
This team really needs new transfers for their midfield especially. Because their attackers aren't that bad actually. Vlahovic has scored one third amount of the goals in the league so far. But they can't have good level of contribution from their midfielders. Allegri needs to be given a good amount of budget to make the needed transfers this summer (if he doesn't get sacked though).
In 29 matches, 44 goals is not enough for a team that wants to be a champion, for example, Inter scored 71 goals, the difference is very significant. Vlahovic is trying his best, he scored 15 goals, that’s not bad, but in order for Juventus to compete with Inter, they need a stronger forward, or at least someone to help Vlahovic. If I’m not mistaken, Allegri has a contract with Juventus until 2025, but I see that his possible departure from the team is also being discussed. Whatever the club decides, Juventus in any case needs to strengthen the attack, without this it will be difficult for them.This team really needs new transfers for their midfield especially. Because their attackers aren't that bad actually. Vlahovic has scored one third amount of the goals in the league so far. But they can't have good level of contribution from their midfielders. Allegri needs to be given a good amount of budget to make the needed transfers this summer (if he doesn't get sacked though).