#3 The striker situation
Alvaro Morata failed to register himself on the score sheet, but fought admirably throughout the game against an otherwise extremely physical Huddersfield defense. He could certainly get better service as the team gels and more cohesiveness comes into the buildup play.
Chelsea lacked the incisive passing that characterizes Sarriball. However, Chelsea also needs a plan B if Morata fails to perform this season.
The decision to loan out Batshuayi to Valencia looks questionable as Olivier Giroud is not seen as a stylistic fit for Sarri's system, and Tammy Abraham though full of promise, is yet to perform in the Premier League.
If Alvaro Morata doesn't have a good season, The Blues might have a lot of problems this term.