Pochettino has a long experience in his coaching career so it's only natural that fans have high hopes for him to turn Chelsea into a stronger team next season. Previously, Pochettino was also successful with PSG because he managed to bring PSG to win the Ligue 1 trophy, even though he was later fired by PSG management, but he was a great coach in building a team.
Apart from that, Chelsea, which is inhabited by many players who have good quality, will of course be a strong support for Pochettino for next season. We need to see how Chelsea play under Pochettino where the first match will probably be in the friendly against Wrexham next month.
I agreed about Lampard he was not good coach as he needs more experience and time for the better results, but Graham Potter was doing impressive job at Brighton before joining here, but too much interference from the owner was also issued here in Chelsea which hurts this clubs badly now they need to give time and strong backup for having better results from Pochettino because again if we have some things surely this could be disaster for the club, and they can go down as well their first job is offload many unwanted players and having players which can give them good results and Pochettino also feels confident with players.
I have no doubt about Pochettino but just winning Ligue 1 with PSG is never been title for the best because with too many stars and having deep wallet is also a good way of having title, but now we have big test case for him here in Chelsea.