This has carefully planned and coordinated.
Recall that Rosenstein recommended Comey be fired. Recall also that Comey testified that his intention was to leak so that a special council would be created.
The Russia Narrative was losing steam and they needed to create an ongoing aura of wrongdoing. Comey could not appoint a special council, Rosenstein could. Getting Comey fired would feed the obstruction sub-narrative of the Russia Narrative and would create the optics needed to bull through the appointment of a special council.
It worked.
Rosenstein picked Mueller, with whom Comey has coordinated his Congressional testimony.
The history of these three together*, the blatant collusion of Mueller and Comey, the improper appointment of a special council, Muellers investigation of things far outside the scope of Rosensteins improperly created special council, Mueller staffing up with Democrat bundlers and Clinton Foundation lawyers....
This is disgusting. Mueller and Rosenstein have ZERO credibility.
* https://stonecoldtruth.com/muller-rosenstein-and-comey-the-three-amigos-from-the-deep-state/
Comey to Rosenstein, Fire me.
Rosenstein: What?
Comey: Fire me so that you can appoint a special council.
Rosenstein: Brilliant!
Comey: We can do this. We are the Resistance.