Condrey’s knowledge of the criminal conduct of the individuals you mention may be why the Obama DOJ hadn’t had him sentenced, yet. On the other hand, his prosecution could not be controlled by the DOJ once the local US Attorney got it rolling.
Rosenstein lead the prosecutorial team against Condrey. And now with Sessions recused, it's Rosenstein again, with almost exactly the same prosecutorial team in this case against Cowdrey's partner Lambert.