While I agree with the sentiment that the pace of things is Stone Age slow, I also see that there is a distinct possibility that AG Sessions is actually abiding by the rules of his agency, I.e. not divulging investigation information before it is appropriate.
Rip is definitely a captive (willing, apparently) of the DoJ bureaucracy as developed most recently by H0lder and Cankles Lynch.
Appointing and supporting Deep Stater RosenKrantz keeps change at bay.