Chelsea has faced a serious transition from last season to this season and many players have left the team, many players that have won the champions league with Chelsea have left the club to other clubs, just a few of them left and bunch of other new players. This new Chelsea coach can make things better in Chelsea with the new young players, he will have the preseason to try out the new players and be prepared for the first few games in the premier league which will be important.
Pochettino really has a big difference to revive Chelsea's strength after he was appointed as the new Chelsea coach for next season. It was unmitigated that Chelsea Management sold many players in this transfer window, even players who had the best individual qualities were also sold, such as Mason Mount. So everyone will be looking forward to Pochettino's performance in the games in pre-season before they really do all the hard work in the Premier League.
I hope there are no silly blunders with their decision to release many players in this transfer window. But what we want is to see Chelsea be able to re-enliven competition in the top 4 and that is what the fans want for Pochettino next season. Most likely the target next season is to reach the top 4 and that must be realized by Pochettino in the next season.