I can see what people meant by Lukaku's lack of fitness. He has hardly run that much and he looks exhausted. I guess he also doesn't have experience in this weather, its 28 deg in Milan this evening.
Conte's stamp on this team is clear. We are already playing his brand of football. The wingbacks are doing well, and so are the two goal scoring midfielders. But we clearly need at least 1 striker more. Lukaku is playing like Man Utd Lukaku, and Martinez isn't ready to lead our attack yet. We also need SMS/Vidal to help us rotate the midfield. If we can give Conte some more quality, he can achieve things here.