User blog comment:AYET/The worth of the Shichibukai to the Marines 2/@comment-9787781-20140127113302

I don't agree. I think the Marines are already as strong as a Yonko. Looking at the same evidence (Marineford) I come to a different conclusion. Whitebeard pirates vs Marines; Akainu kills Ace (3rd strongest WB pirate), Diamond Jozu (4th Strongest WB) loses an arm to Aokiji and Marco the Phoenix (2nd strongest WBP) breifly sparred against Kizaru for no result. I see that as two clear defeats for the WB pirates and no damage to the Marines. Before anybody says "but wait WB didn't take part" neither did Sengoku or Garp (definitly the two strongest Marines). So Yonko Vs Marines; Marines are AT LEAST equal.

By the same logic looking at the contributions of the Schichikubai; two former Schichikubai take out two current ones (Jinbe and Crocodile essentially nullified Doflamingo and Moriah), Boa Hancock takes on everybody (mostly marines), Kuma doesn't send anyone of importance flying, Blackbeard completely betrays them and Mihawk doesn't do much either. I mean realistically if they werent there it would probably have helped the Marines.

In terms of your theory though; I completely agree that Sakazuki is going to destroy the Shichikubai system. They have shifting allegiances meaning they are the wildcard as you put it, and the because of their kind of 'grey' nature they muddy the waters of Sakazuki's Absolute Justice. So Kuma, the Marines keep, Mihawk you make a Marine (PR stunt and because you know he is always going to fight challengers for No 1 Swordsmen) thus destroying pirate upstarts. Donflaming you execute, same for Buggy, Trafalgar and the other one. The only one I don't know if you would kill or keep by making it a legal nation Boa Hancock or Amazon Lily.