OK, then can we say Mbappe is better than Messi or Ronaldo because he had a better first year?
Sarri, Tuchel, Nagelsmann, Sampaoli & Jardim aren't better than Mourinho, Klopp & Wenger because of how they are doing this season, or because of how their first season compares to those older coaches first seasons. They are better because they have done a better job of coaching the talent at their disposal in the modern game, and have done so for a minute now.
Fair enough. Don't get Klopp over Mourinho though.
I much prefer Klopp as his teams are much more fun to watch, but in terms of being the better manager I just can't rate him above the Mourinho.
Mourinho's greatest Triumphs are even older than Klopp's. They're not quite as far off as Wenger's, but neither of these coaches has done all that much winning lately...while these new coaches have broken onto the scene with their much more progressive football ideas & tactical understanding.
I love Mourinho as a personality and hope he stays around the game long after he stops coaching, but his style of football is getting left behind.