Lanji tbh.
He should've produced a plan, we know Lanji isn't dumb like Zolo, we've seen that he was able to make good plans in Alabasta, Skypiea, and Enies Lobby, but he didn't do anything in WCI.
Lanji being smart was the part that filling Zolo's dumb part in terms of being Luffy's right hand. Because Rayleigh is a smart guy, while Zolo is dumb, slightly stronger than Lanji, while Lanji is smarter and close to Zolo in power. That's why they are the ''wings''.