The President was appointed to the additional post of Sadaijin (Minister of the left), but no cases were recorded, when Genroin was established the Presidential seat was vacant and the Vice-president Shojiro GOTO acted for the President.
議長は左大臣の兼務とされたが実際には一度もその事例は無く、設置当初は議長は空席で副議長の後藤象二郎が議長の職務を代行した。