Their players are still not in sync with each other which makes it a bit tricky for Chelsea. On the other hand, it is true that they currently have a bad condition in attack but looking at the current condition I think it is a natural thing where risks like this will happen if we change too much from starting players and coaches.
One loss, one draw and 2 defeats are not very good if you look at the current conditions but I think with the current conditions it is actually still fixable and Pochettino can take Chelsea in a better direction just waiting for whether he will fall down with all the criticism or actually rise to be better.
Honestly speaking, I'm yet to understand Chelsea's current issues that's making them to be underperforming despite all the huge spendings by the club's management to add more quality players to the squad. From the statistics, Chelsea has spent more than any European club in the last three transfer windows yet the results gotten from these players are very poor.
Mauricio Pochettino is a great and experienced manager who I think should deploy the best of his managerial abilities to that'll serve as a lasting solution to the club's current issues. Though they've lost two games in four matches this season, but if Chelsea can bounce back to winning ways, they can still have a great season
All I can say for a reason in this case is that their reshuffle was so sudden. It's not just about the players but it starts from the owner as well as the club officials which makes them unable to recover quickly.
Todd would have breathed easier if Cech hadn't followed Abramovich's lead to leave but Abramovich's confidants left one by one which left them devastated last season and the replacements now both in terms of club officials and coaches still can't contribute much even though the player reshuffle is done every season.
In addition, the reshuffle of many players also cannot be a guarantee that they will immediately develop and the proof is last season and now, because they also have to think about adaptation which cannot be done quickly.