Li Guangbi
It was said, however, that Pugu Huai'en was brave but overly aggressive, and that at times his command style was overly tolerant. Li Guangbi often curbed him in and punished his subordinates for wrongful behavior. Pugu thus feared and disliked Li Guangbi. In spring 761, this eventually turned into a disagreement where Pugu disagreed with Li Guangbi's strategy of holding at Heyang but rather advocated, along with Yu, that an effort should be made to recapture Luoyang. Emperor Suzong agreed, and ordered Li Guangbi to advance toward Luoyang with Pugu, Yu, and Wei Boyu (衛伯玉). Li Guangbi and Pugu, however, disagreed with to camp formation, with Li Guangbi wanting to put the camp in the hills and Pugu wanting to do so in the plains. Yan forces thus took advantage and launched a major attack on them, thoroughly routing Tang forces. All of the Tang generals, including Li Guangbi, Pugu, Yu, and Wei all fled. Li Baoyu, whom Li Guangbi had left at Heyang, also abandoned Heyang, and Heyang fell into Yan hands. (Soon after the Yan victory, however, Shi was assassinated and succeeded by his own son Shi Chaoyi, and Yan forces were unable to take advantage of the victory over Tang forces.)