If he isn't leading, he's moaning.
Being a good player doesn't make you a good teammate.
Look at Astralis... Individually, nobody on that team is head and shoulders above the rest. They're all as good as each other and all get along.
Look at Faze... Individually, NiKo is head and shoulders above the rest in terms of ability.
Olof, Guardian, Rain and Adren are all quality quality players. But their teamwork is abysmal and they don't have the team connection that Astralis do.
As good as NiKo is, he'll never achieve anything because of his ego.
His team are too scared to upset him so they try too hard and make mistakes.
NiKo will never win a Major tournament.