Under the system, the Oda clan was supposed to be able to stay in power as long as the head of Oda clan having the largest military force survived, even if Nobunaga was killed in a rebellion raised by his vassals.
そのため、仮に信長配下の大名の謀反により信長が倒されても、信長傘下でもっとも大勢力をもつ織田家の当主が生き残っていれば、政権が維持できる構造になっていた。