Almost as if there’s 5 of them.
They’re obviously fighters, but Yonko tier fighters surpassing the admirals? That seems incredibly sketchy.
It'd be the part of endgame though lol. One avenue I've seen is the final war is a two parter. The first part being against the Marines and mainly Luffy and his crew fighting Akainu and the Admirals, then we move to the WG on Mariejois.The Gorosei however are pretty cleanly marked that you could have Luffy fight Im and Zoro, Sanji, Kid, Law and someone else (Killer?) fight the Gorosei.
At that point, it could be believable, considering it's a shonen and usually endgame antagonists are some of the strongest people in the series.
All I'm saying is it's weird for the Monk Gorosei to carry around one of the 12 greatest swords in the world (and a cursed blade no less) and not be really strong.