So far I didn't see any special news about Chelsea after Pochettino joined the team and it seems like Pochettino didn't show interest in hiring players yet, not at least they tried to keep the list private but the Chelsea I can see need a revolution and Pochettino should release many players they don't need to have the empty spot and hire the players he needs to have for the next season.
I expect to see Pochettino help Chelsea to be at the top of the premier league again in the next season 9f everything goes well.
He has to adapt to the atmosphere and he has to be able to give more joy to the status he has just joined Chelsea. Surely he will overhaul Chelsea in the transfer market this season by bringing in players who are already on his watch list. Pochettino has a bigger target next season, namely to bring big changes to Chelsea after having slumped this season.
In the latest developments, several important Chelsea players will leave in the transfer window, such as Mason Mount, and even many players will be sold by Chelsea in this transfer window. I think Chelsea is in the stage of a fairly large revolution and hope that Pochettino can be wise in releasing players and bringing in players because that is quite influential for Chelsea's strength next season.