I think the cases against each are fairly independent. Comey was right in the thick of faking the Russia narrative using FusinGPS and Crowdstrike, getting a FISA warrant as insurance against being criminally charged with snooping without a warrant, and continuing subterfuge to sink Trump after he was elected.
I haven't figured out the Rosenstein gambit just yet, but I believe it involves Mueller too. I think Rosenstein was given a choice to choose sides - a risky move on Trump & Sessions' part. Once in place, he appears to have sided with the dark hats; but I suspect even that is a gross simplification. "Complicated business" as Trump once said.
I strongly believe Rosenstein is a white hat; and, by implication, so is Mueller.
Flynn is going to be exonerated, and so is Manafort.
Though probably not guilty of any crimes, Manafort did have political baggage (Ukraine) that he did not disclose to the campaign. He is paying a price now, but I think will emerge whole.
It will be interesting to see if Mueller is used to issue indictments resulting from the I.G. report and other existing investigations such as U-1, Clinton email, Clinton Foundation (+Pedo-estas etc.), Awan-gate and Leaks.
Needless to say, Mueller indictments would be as bullet-proof as possible given the year of adulation heaped upon him by the Left. He has been inoculated against the inevitable vicious personal attacks a la Bork and Starr.
I was thinking along the lines of AG Sessions first got McCabe, then going after Comey, then Rosenstein....
Rolling up from the bottom, getting the small fry to rat out the bigger fish.