With Messi in team, everyone else is bound to get eclipsed.
Henry said it once that when he came to Barcelona, he was asked to press and play high left. He never really played there. But when he saw Messi play, he started pressing for Messi because one has to do what can make team wins.
Neymar simply wanted to be the top star of the team. Nothing wrong with that but switching to PSG killed his career. I would have understand if the move was to EPL but to PSG at that time? Nah man....
It was suicide by Neymar