I read where Stalin was presented with a plan to kill Hitler, who sometimes ate at a Berlin restaurant where they could have gotten to him. Stalin said, “But what if they replace him with somebody competent?”
Many times I have read the business case where a company was failing and the owner died. Somebody replaced him and rejuvenated the company into a moneymaking affair. When it comes to generals and political leaders, sometimes it is best to leave whoever is in charge, in charge. I don’t know if this man is competent or not, but a study I read about political assassinations investigated the actual results versus what the assassin wanted. In every case they studied the opposite of what the assassin wanted was achieved.
There is nothing linear about politics. The results of big moves, like assassinations, can be chaotic and unpredictable.
The German general staff sending Lenin back to Russia comes to mind.