He was later dismissed by Duke Jing of Qi, who apparently listened to hypocrites, falsely accusing Rangju.
In order to build his prestige within the army, he suggested to the Duke to send someone to oversee his actions.
Rangju then executed the messenger for galloping freely inside the army camp, also killing his horse and destroying his cart.
Other Qi clans including Bao (鲍), Gao (高) and Guo (国) saw him as a threat and made false allegations against Rangju in front of the Duke.
Tian Chang's great grandson King Wei of Qi organised the works of Rangju and it was known as The Precepts of War, also known as The Methods of the Sima.