Chelsea has invested billions to their club, but shameful when they unable to qualify for UCL.
What I see is Chelsea's current management plan to spend a lot of money to bring in young players. And it seems that Chelsea does have a goal to build a more productive squad and have stable performance with young players. As we see Chelsea has most of the players who are still young and to build a better team, it does take a very long time. On the one hand, making a major overhaul to get a strong enough performance from the contribution of young players requires a coach who is truly experienced and also able to build the talents of these young players. I still have confidence that if Chelsea at least brings in a professional coach and brings in 1 key player with high quality, the Chelsea squad can get better results and be equivalent to the money they have spent.
I agree with you that since the change of ownership, Chelsea have been more focused on building a young team for the long term, and although it will take time, this investment can provide positive long-term results. Indeed, the main key is an experienced coach to manage the potential of young players. With the addition of one right key player, Chelsea can rise faster and show quality that is commensurate with the money that has been spent and it is not impossible that past glory can be repeated.