Good material thanks.
Have they worked together before?
I don’t know the answer to your question... this article tells the most about the character of John Durham.
https://www.courant.com/news/connecticut/hc-us-attorney-20171020-story.html
Excerpt ~
<> <> <> While pursuing Bulger and corrupt FBI agents in Boston, Durham uncovered secret FBI memos files showing that agents, to protect an infamous informant, framed four innocent men for a 1960s murder. Two of the innocent men died of old age in prison and the two survivors had been locked up for more than three decades when Durham discovered the memos and personally delivered them to one of the defense attorneys. <> <> <>
NOTE: when Durham discovered the memos and personally delivered them to one of the defense attorneys.
* Ironically, Mueller was in on the prosecution of the four innocent men.
Whoever said that the battlefield is being set, is spot on!