Ah yes, the human factor. Can't just treat people as chess pieces. Granted, given what he did to the Islanders before getting beaten and how the Qin act, pretty hypocritical to then whine about getting outdone, he was the one who cheerfully used tons of his own men as total fodder and the current plan would have kept them alive. But people being emotional hypocrites is still a factor a real leader has to consider anyway.
