#2 Fewer one-sided international friendlies
UEFA European Championships and the Copa America qualifying are the only tournaments where there is no pre-tournament to select the best teams.
Or to put in a better way, there is no way to eliminate the weakest teams. Due to this, there is a heavy mismatch of quality in the actual qualifiers.
But the Nations League will be different as it will only contest matches between more evenly matched teams. The League group consisting of France, Germany and the Netherlands shows us the exact example of this benefit.
Edited by Rohith Nair