Thanks for the ping. I wonder what it takes to stop a special counsel investigation.
A zot works. See Nixon sacking Cox.
There is a supposedly "orderly way", that is expressed in DOJ Regulation at 28 CFR 600.7
(d) The Special Counsel may be disciplined or removed from office only by the personal action of the Attorney General. The Attorney General may remove a Special Counsel for misconduct, dereliction of duty, incapacity, conflict of interest, or for other good cause, including violation of Departmental policies. The Attorney General shall inform the Special Counsel in writing of the specific reason for his or her removal.
For the Mueller investigation, "Attorney General" in this regulation is Rod Rosenstein. An earlier part of DOJ regulations provides for the substitution of "person acting as Attorney General."
Finding any of those causes for removal is a pubic/news/political activity. Absent public acceptance of reason for removal, the removal of Mueller would be like Nixon's removal of Cox - portrayed by the press as an admission of guilt.
At this point, I just ask whether the public accepts Mueller as "unbiased." If the answer is "no," then allowing him to finish is pointless.