The Great Flynn Case Mystery

I have been wondering why, shortly after Judge Rudolph Contreras was (without explanation) recused from hearing the Michael Flynn case and Judge Emmet G. Sullivan took over, Special Counsel Robert Mueller agreed to postpone the sentencing until May, after the inspector general's report is due. 

I have no assurances that my suppositions are correct, but I'm beginning to think that at the next hearing of this case, Judge Sullivan will hear Mueller dismiss the case. Here's how I come to that. 

The only reason I can imagine why Judge Contreras was recused – note: did not recuse himself – is that he was a member of the FISC, the court that grants surveillance warrants under FISA. 

As the evidence mounts that the warrant was improperly granted, someone – perhaps the chief judge of the district – removed him from further participation in the case, likely because Contreras approved the warrant and its extension. If the warrant was improperly issued, all the evidence it garnered is tainted. 

As to why the agreed upon delay, my thought is that Mueller wants to wait until the inspector general report so that, in a sense, his hands will be clean if the case is dropped, that he was compelled by the record to do so.

Source.