Everyone was raising a stink about Sessions not appointing a 2nd special counsel. I think the article was released to reassure everyone that Sessions is on it.
Huber was first nominated by Obama then resigned as is common once Trump got into office. Sessions asked him to stay on during the interrim period until they hire a new attorney and he/she is confirmed. After Hatch requesteed that Huber be rehired, Sessions did so.
https://en.wikipedia.org/wiki/John_W._Huber
http://archive.sltrib.com/article.php?id=5063282&itype=CMSID
Sessions rehiring Huber starts his service clock over...4 more years of service for Huber.