I think you might be right. If Trump and Sessions are playing theatre, then what is the objective?
What or who are they trying to set up?
An unrecusal by Sessions?
A “firing people” culture so they can go after the obama & never Trump holdouts in the exec branch?
Trump is playing theater. I don't think this bothers Sessions, I think Sessions "undertands" his job is secure, and that Trump is managing the message for the public. I don't think Sessions is part of the theater, he is a sort of McGuffin in this plot.
The FBI is super dirty. Comey was not the only snake, the place is infested. Comey's tem is still in place at the FBI, his riht hand man, McCabe, is running the place. Mini-Comey. The FBI is probably sitting on the Hillary cases.
On the Mueller angle, Trump is setting up challenges to the legitimacy of the investigation against his campaign, in several ways. Mostly that Mueller is biased, see the team he picked; and also that his mission creep is 1) a sign of bias, and 2) per se inappriate inasmuch as the bogus charge in the fist place was "campaign colluding with Russia," not "Manafort was laundering money."
Yep, there is something else at work here.