Not in the same league as (someone or something) phrase
To be not equal to someone or something in quality, ability, skill, etc.
When it comes to playing football, I'm not in the same league as John.
His later work was not in the same league as his early work.
As for boxing, he is not in the same league as me! I'm unmatched by any other boxers in this century!
The origin of this phrase is not clear.
Used when there are too many people involved in a task, and this can lead to a failure or its likely outcome isn't good
I think five people should be enough in our project. You know, too many cooks spoil the broth.