It's true that Chelsea doesn't need a major overhaul because the current squad is sufficient and able to compete it just needs a few adjustments, if they really want to bring in new players it's better to focus on the defense line because Chelsea's defense is one of the weakest at the moment with a record of conceding 26 goals in 16 matches yeah that means the average Chelsea conceded 1.6 goals in each match of course nothing can be relied upon with it. Previously I was optimistic that Chelsea could rise from adversity but after their recent losing streak that optimism has disappeared.
Chelsea still has time to improve everything in the next transfer window It's just that is the owner still willing to spend a lot of money to bring in new players? We know that in the last 2 seasons Chelsea has spent a lot of money of course they don't want to repeat the same mistake unless they barter between players for example releasing several players like Lukaku and others so they don't have to spend more money, what is clear is that efficiency is needed, there is no need for an overhaul.
Of course Chelsea doesn't need a bigger overhaul because they bought a lot of players in the transfer market last season. I think Chelsea Management and Pochettino only need to bring in 1 or 2 right players for their front line in the upcoming transfer window. They have to adapt their game so that it fits better with the existing squad because the chelsea players are quality players who they bought last summer.
Pochettino needs time to give Chelsea back-to-back wins and that effort certainly won't happen so quickly after the slump they experienced last season. Even this season chelsea have only won 5 matches out of 16 matches which of course they have not been able to show their best strength. Chelsea must be able to end their bad streak to improve their performance in the standings because they are stuck in 12th place and if they lose they could drop their ranking again.