There's just one problem with this theory: there's plenty of stuff he could be prosecuting that would have zero impact on the recusal/investigation and have minimal impact in disrupting/alerting "the swamp" — as an example, he could direct the DOJ to come down on patent trolls (the companies which acquire patents and then make their money by pushing infringement cases), he could investigate the rampant H1B fraud (especially in the tech sector), he could investigate/prosecute the OPM breach (allegedly from china) from a few years ago [IIRC nobody was held to account], or investigate/prosecute the Wells Fargo institutionalized identity-theft incident [namely how they got out of it by paying such a paltry fine].
The OPM breech, in which I was a victim, isn't going anywhere. Waste of time. It boils down to bad management. There is nothing statutory for the DOJ. The IG on the other hand could recommend disciplinary actions-- but it would be tough because of the climate of the previous administration to do nothing.