Additionally, Nagayasu OKUBO gradually distinguished himself, and at the beginning of the period of Koshu, it was a system based on Naruse and Kusakabe, but in the latter half, it was one of the three magistrates system with Naruse, Kusakabe, and Okubo.
また、大久保長安は徐々に頭角を現し、甲州時代の初期には成瀬・日下部の両職の体制であったが、後期には成瀬、日下部、大久保の三奉行の体制になっていたという。