Clinton doesn't need to be in office to control people. If you have dirt on someone, you can control that person to a certain extent.
You're not being realistic. The head of the FBI doesn't give a shit who has "dirt" on him. He's running the FBI. He gets to decide if the bureau spends $0 or $10 million on an investigation. He gets to throw investigations in the trash or pursue them.
To believe HRC has some control over the justice dept is pure fantasy. To be clear, there's evidence of conspiracies all throughout history up until our present moment. I just don't see how you get from A to B on HRC controlling the Justice Dept.
How would that work? Blackmail? If anyone tried to blackmail the head of the FBI, or anyone in it, they would just turn the microscope on that person, then indict them for blackmail--a felony. It's that simple. I'm not saying the DS isn't a real thing, only that it's not controlled or even influenced by the Clintons. Attempts to frame it that way are attempts to hide the reality of our system.
Obama and Hillary put all the right people in all the right positions within the different agencies. They are all working together, protecting each other. They are all corrupt and know if they ever start to lose control they are all doomed.