Later on, the system of having six assistants was changed, Nobutsuna MATSUDAIRA and Tadaaki ABE became senior councilors and Toshikatsu DOI and Tadakatsu SAKAI assumed the posts of Chief Master, dealing only with important matters.
その後六人衆から松平信綱や阿部忠秋らが老中となり、土井利勝や酒井忠勝は重要な事項のみ扱う大老となった。