On the Relationship among Zhisuduwei,Sousuduwei and Dasinong;
治粟都尉和搜粟都尉与大司农关系考——对《汉书·百官公卿表》大司农两处空白记录的思考
The Senior general, Biaoqi, Cheqi and Wei generals were often added the DA Sima official, so their political positions were highest and their powers were greatest.
西汉后期将军成为中央常设官,大将军、骠骑、车骑、卫将军经常冠加大司马,地位最高,权力最大;前后左右将军成为皇帝直接控制的武力集团。