Dick Williams was the GM of the Cincinnati Reds throughout the 2016 season. That technicality is inarguable. It was presumably on his business card, his LinkedIn profile, and would've absolutely been, like, the third thing he mentioned in his Twitter profile (if he had one). Of course, all job descriptions aren't created equal.
While Walt Jocketty had officially transitioned to being the Chief Head Assistant [insert words here] Advisor to Special Services and Operations Pertaining to Ownership, Roster, and Management, it was publicly known that the veteran string-puller would still be pulling the 2016 strings. It was an apprenticeship of sorts for Williams, I presume, though he'a already spent a pile of years being one of the team's Assitant GMs.