There is another theory that denies the continuity of Kumonjo and Mandokoro and argues that the functions of Kumonjo were absorbed by Mandokoro as a consequence of OE no Hiromoto being posted as betto (director of a secretariat) in both organizations where a number of his work functions overlapped ('Kamakura-shi' - 'The History of Kamakura City').
また、公文所と政所の連続性を否定して、大江広元が機能に重複する部分があった公文所と政所の別当を兼務した結果として公文所の機能が政所の機能に吸収されたとする説（「鎌倉市史」）もある。