Pochettino the new Chelsea coach is not starting afresh or starting from worst. If you discover last season that Chelsea was struggling with form and losing all their matches. They were also signing good players. So it is correct to say that Chelsea has good players that they have signed, but the problem was that there was no chemistry between the players and the Coach and management. So it is now the function of Poch to put everything together to give Chelsea a successful season. The rebuilding started last season not this season.
If the rebuild at Chelsea started last season it would be very good for next season. Because Chelsea should already know that they have to really improve by bringing in new players as well as new coaches in order to make their appearance next season look better than last season. After all, Chelsea fans will continue to feel embarrassed if next season Chelsea cannot get good results through a different strategy from their new coach.