The FBI is corrupt. There is no telling who is corrupt and committing sedition, and thus the entire top tier of management at the FBI should be fluttered and all that fail should be terminated for cause. And everyone that worked to any degree with the folks that have been terminated should also be terminated. A true purge that numbers in the hundreds should occur.
Sadly, the same could be said for the DOJ. Thus, Trump does not have much leverage with these rats.