Not just the front trio, but we are missing inform Chillwell and James. Those two can overlap, allowing wingers to move and create more space. Azpi and Alonso are decent, but too slow and predictable. Imo the importance of fullbacks/wingbacks is very underestimated. Alonso may have good moments, but he doesnt improve our system as a whole like Chilwell did last season.
Question: was bringing Lukaku to add "proven" flat track bully type scorer worth it for the cost of high pressing and chance creation? IMHO no, Werner and Kai worked perfectly in that system, althrough they arent the players that can be relied to score goals. Werner might be shit on the ball, but he was complete question mark for opponents last year in CL. We had so much space thanks to his off the ball runs.
Unpopular opinion, but idealy we should start games with same 11 like last year and bring Lukaku on tired defences if we are struggling. Obviously we wont bench 100m striker but that would probably accomplish the goal to make us more complete compared to last year. Winning a title or two with that strategy would be way more realistic compared to current complete change of entire working system just to utilize Lukaku who isnt good enough against best teams.
Also on side note, Tuchel improved every single defender here, individualy and as a team. That cant be said the same for forwards. Rarely anyone made any improvement. Ziyech is terrible, Kai, Puli, Werner didnt improve upon their buli games. Mount is only one who did, but is not on that level this year. Its something Tuchel needs to adress. If our attackers didnt improve individualy last year, they worked as a team and that is also gone this year.