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.
Pochettino hasn't still officially started his job yet. He is expected to join by the beginning of next month. As of his arrival there I think Chelsea will start to increase their attempts for transfers. Because they are really still in need of strengthening some areas in the lineup. Nkunku is about to join Chelsea soon which is a good start. Because they needed a solution for their scoring problem. They scored only 38 goals in 38 league matches. Can you imagine how terrible it is for a team like Chelsea?
I don't know if Nkunku is enough for the centre-forward place. Because Felix is returning to Atletico Madrid and Havertz is likely to leave this summer. They can sign a really solid striker by using the money they get from Havertz's sale actually but let's see.