User blog comment:XdrakeYONKO/The Mighty Sabo - 737 quick review/@comment-87.211.21.249-20140205231546

As for first commander and right hand i would still say IVA..at least most trusted.. mayb in terms of power SABO could indeed have taken KUMA's Position. But i still think that KUMA made a deal with Vegapunk without harming the RA..and in a way strengthen their influence in the OP WORLD even further.. But plotwise and strenghtwise SABO could indeed be the next man in line for Kuma's position. also Dragon probably trained him in the basics like LUFFY received his training from RayL. this could also explain the naming of his first shown technique.. So i agree with most of it