Chelsea's need for a creative player is clear. Thomas Tuchel doesn't just lack a goalscorer, there is an abundance of players able to carry out their own actions on the pitch, hence claims that the manager has overcoached them into their current form.
This is mainly an issue when Chelsea aren't winning. There are plenty of ways to win matches of football but when Liverpool, Manchester City and now Arsenal are all firing in goals, Chelsea's return looks even worse. Five goals in four matches, only Raheem Sterling has scored as a forward and defenders have the same amount of goals as the the attackers combined.
It's an old tale for Tuchel at Chelsea in some ways. He's always had to make up and cover for weaknesses and flaws in his squad. It's not something that fans see as being sustainable anymore and questions are being asked. Tuchel is ripping up the fabric of the attack that he inherited and trying to implement his own ways.