I think with this, it might be very evident that you need multiple powerful people to handle them. If BM pushed Marco aside like nothing, and the Scabbards v. Kaido, which is a 9 vs. 1 battle that likely aims to have Kaido win, then you need quite a few strong people to try and take down both.
Right now you have Luffy, Kid, Drake, Law and Marco probably as the "top" fighters on the good side. Adding their allies, then you have Zoro, Killer, Sanji and Jinbe, assuming the rest of Kid and Law's crews are somewhat useless. If Hawkins and Apoo switch sides, then that is a few more. However, since now it is looking like Sanji is handling Queen, Zoro/Jinbe/Killer may handle other major fights (King/Jack/Who's Who respectively?)
BUT I still question how it'll be done. Surely both of them are meant to go down in "oars-style" fights until Kaido and/or Big Mom are weak enough for Luffy and someone else (Kid?) to handle them, but its a matter of how the fuck we even get to that point when Kaido/BM seem to have limitless supplies of strength lol. I assume Luffy's haki will be key in the least, but I wonder if anyone else is coming to Wano to at least assist.
