There is a theory that at that time Mitsunari wanted to act in concert with Yusai HOSOKAWA, but he couldn't do so effectively because he was in a distant location conducting kenchi (surveys).
この際、細川幽斎と共同しようとしたが、三成が遠方の検地に赴いていた為、思うように動けなかったとする説もある。