How did Yu Chaoen deal with Guo Ziyi?

Yu Chaoen was afraid that others would be more favored than himself. He always found fault with the minister and made irresponsible remarks in front of the emperor. Especially for Guo Ziyi, the deputy marshal of the world's military forces, he was afraid and hated. He has repeatedly vilified him in front of Dai Zong, but it has never been effective. So, while guarding the border, Guo Ziyi secretly sent someone to dig Guo Fu's grave in an attempt to destroy his "Feng Shui" and bring him down fundamentally. For this despicable behavior, generations in the ruling and opposition parties have been saying that they are afraid of accidents and are deeply worried. Fortunately, Guo Ziyi put the overall situation first and didn't catch another handle on Yu Chaoen, so he didn't delve into it.