User blog comment:Xilinoc/Ch. 560 - Rages at Ringside/@comment-7079377-20131204201204/@comment-26420452-20131206072350

Look, I said that "having Bankai" = "captain" is what Mask might've been asuming. Personally, I feel that Renji, Ikkaku and Hisagi are miles away from being Captain level (let alone become Captains), especially Ikkaku.