But what do the titles that Pochettino won really count? Are those titles valuable titles in the world of soccer? I would say no and it is also a difference if he had won those titles with a club like Lens and not PSG. Winning Ligue 1 with a star ensemble like he had available is not a big achievement. He might be the right coach now and I could be mistaken here, but my impression of Pochettino is that he is a decent coach but nothing to be too optimistic about. But he can enjoy his contract as I am sure that he has become a little bit richer when signed it with Chelsea 
If winning the Ligue 1 championship with PSG is not a noteworthy accomplishment, then Ancelloti winning the Champions League for Madrid is also not noteworthy because they have always won it. I understand that Ligue 1 is a one-sided league, but other teams can try to win it, just as it happened in the Premier League when Leicester City fought back from relegation to win the title. A trophy is a trophy regardless of how frequently a team wins it or its record. Anything that may occur in the Premier League can occur anywhere.