Massimiliano Allegri is a wonderful coach and the reason for his slow start is because he focus more on building a strong midfield to give the team a domineering with his favorite 3-5-2 formation before anything. This may seem to delay their attacking and also makes the defense vulnerable but the reality is that he prefer massive defense and massive attacking. If he is giving the necessary supports he needs, I'm sure he will be able to rebuild AC Milan and restore their lost glories.
Allegri's return to AC Milan has brought optimism and belief amongst players like Christian Pulisic and Rafael Leao who have praised his ability to create a positive team atmosphere and defensive balance. Allegri's past records of inheriting challenging situations like this and delivering positive results raises my belief that he will succeed at AC Milan even if it will take time.