PJ is now more stronger than before, he will probably have access to FBI files, and he surely would want to know who were RJ friends in FBI.
i think that is the main reason he accepted this job offer, and he will discover uggly things happening, not only in California this time, but nationwide.
Remember what haffner said to lisbon once; PJ had upset a lot of powerful people not just RJ. Meaning RJ is one of many.

as for " He is mar" could it be He is Marshall? talking about Mcallister, too many people ignore the difference.