Even if you're a #2 on the team, you typically have to take over and carry the team when the alpha guy is out or having a bad game. If we're being honest, Brown hasn't done that much since the playoffs last year. For a guy who got 300M, it's disappointing. And a lot of the mistakes are the same (decisions, turnovers, dribbling, etc.)
That said, I don't think there's too many other solutions. Just need to hope Jaylen figures it out.
The Jaylen-KP connection though is real. I wonder if there are ways to enhance Jaylen's game using that. It's certainly helped Porzingis.