Am not expecting anything special from Chelsea at the beginning of next season, having a new coach is not really easy, its going to take time before the coach will be able to adapt with the players and am sure Chelsea will be getting new players, Pochettino is really having a lot to work on, because Chelsea is really lacking behind. Its not all about having experience coach alone, Chelsea also need experienced player's that are really ready to work for the club. Chelsea spending money on young players is not really the problem, what i believe is that Chelsea are not going for the right young players. Arsenal are also using young players but we all saw they performed well last season.
Actually, I've said this before that Chelsea might adapt again to its new coach, namely Pochettino and in this adaptation process it's not easy because sometimes the strategies given by the new coach can't be well received by the players so maybe Pochettino will adapt himself more closely to chelsea player.
Maybe you don't expect too much at the start of this season but I personally hope that Chelsea can return to its original position with a strong performance like in the past.
At least I hope Chelsea in the new season can try to get a ticket to the champions league.