The Attorney General of the U.S. should no longer be chosen by the President. The Attorney General, an office concerned with prosecuting the enforcement of U.S. law with the power to indict should instead be chosen in some fashion by the federal bodies of law enforcement such as U.S. Marshals (non-posse). They will consider nominees and vote upon one who is to serve as Attorney General. This process of choice for Attorney General for a regular full term will culminate every four years on the 20th of January (or the next available workday in case of Sundays, holidays, weather, etc.) that occurs in the middle of every presidential term.
One may serve as Attorney General only two full terms whether consecutive or not. No one may serve more than an aggregate year as a temporary replacement Attorney General. No one may serve as a permanent replacement Attorney General or for a regular full term who has served more than 6 years in the office in whatever capacity.
Removing Attorney General as a presidential appointee and from need of Senatorial approval will better insulate against any appearance, temptation or fruition of an Attorney General selectively prosecuting law in bias for partisan, political or administration concerns. The President and administration will rely on their own Chief Counsel's input on how or whether to pursue certain agenda items as allowable by all U.S. law.
We advocate a similar and analogous ideal method for all attorney general selections with respect to law enforcement bodies at the state and county/local levels such as the utilization of state troopers and sheriff/police departments respectively towards choice of attorney generals.