Because Fang Jie's spies were sent all over the world, various information was also sent back from across the globe.
Moreover, among the people Fang Jie dispatched, a considerable number are incredibly powerful, so they can snatch some items from certain places or gain some information by capturing prisoners.
These pieces of information are a mix of truth and falsehood, mostly very fragmented and require consolidation.
These tasks are the responsibility of the Cabinet. After these pieces of information are compiled, they will reach Qin Lan.
Only after Qin Lan organizes them will they be handed to Fang Jie. Since not all knowledge is planned to be recorded in Fang Jie's White Lotus Book, recording such things would be pointless and would merely occupy space.
Although the White Lotus Book can accommodate a tremendous amount of information, its capacity is limited nonetheless.