Once the new laws encountered problems, the Emperor's first reaction was not to take responsibility himself but to think that this was an issue caused by your complete domination over the matter, Wenchuan; it was you who must bear the entire burden.
Therefore, later on, the Emperor distanced himself from Wang Anshi and personally initiated the Yuanfeng Reforms.
Although the effects of the Yuanfeng Reforms weren't as successful as Wenchuan's reforms, they were ultimately the Emperor's own undertaking, making him the primary person responsible. Naturally, there was no one else to blame, and so the matter simply continued.
This fully demonstrates that every emperor wants to centralize power and isn't willing to share it with the Prime Minister.
Emperor Taizu of Sheng's answer was to abolish the role of Prime Minister entirely and handle everything himself.
In the Qi Dynasty, it wasn't that the emperors didn't want to do the same; they merely didn't see the feasibility in it.
