Chelsea under Todd Boehly's leadership has been full of bad decisions. The coaches, the player signed, etc. To me, the only good business that Chelsea has done under him that is significant enough is their player sale. They managed to sell their players off at fair prices. I'm still trying to figure out how they were able to sell Kai Havertz to Arsenal for about £65.
When Potter came, I expected him to do well but he didn't and he should have been fired sooner, but they didn't, then they eventually did but they signed Lampard as an interim instead. Who makes those decisions? After Lampard they hired Pochettino. So many bad decisions.
Pochettino is good, but for a team that doesn't want to fight for anything. A team that can go 4-5 seasons without winning a trophy and they'll be satisfied with just playing well and finishing in the top 6. That's not what they need at Chelsea. With the amount of money Chelsea has spent, they need results. They need to win games and compete for trophies.
In my opinion, I think Pochettino has to go. It's sad but he has to go.
You made a lot of sense with your post. In hindsight, the only thing Todd Boehly has done thus far is to splash money at the problem Chelsea has with the hope that everything will be fine and all will be happy but splashing money is only a temporary fix. Plenty of terrible decisions have been made and he just spends much with the hope that it would be resolved that way — for instance, Chelsea didn't need Caicedo (even if they did, he was a £40M player before that bidding war with Liverpool) and also Lavia.
Pochettino is trying his best but Chelsea needs a hard core manager. This Chelsea situation reminds me about the time when Liverpool were drowning in inconsistent results and losses until Klopp came along from Dortmund and turned things around.