More than two weeks ago, Texas A&M hired Jerry Montgomery as its associate head coach and defensive line coach. The Aggies even put out a press release announcing Montgomery's hire, with a quote from new head coach Jimbo Fisher. Google "Jerry Montgomery 12thman.com" and this is the first result.
He event went recruiting for the Aggies.

In this cryptic message, Montgomery said goodbye to his unit in Green Bay.

But the link above is no longer active, and Montgomery has not tweeted since Saturday. Here's what the A&M staff page looks like.

On Tuesday, the Green Bay Packers announced their full coaching staff for the 2018 season, which includes Montgomery as the defensive line coach.

And this isn't a copy/paste error. Here's the blurb on Montgomery from the full staff announcement:
Montgomery is entering his fourth season with the Packers, having served as the defensive front assistant for the past three years. In 2017, he was part of a staff that helped Green Bay rank No. 8 in yards allowed per carry (3.86) and tied for No. 9 in rushing TDs allowed (10). DT Mike Daniels earned his first career Pro Bowl selection this past season, just the fifth defensive tackle in team history to be named to the Pro Bowl, after recording a career-best 72 tackles while ranking No. 3 on the team with five sacks, and DT Kenny Clark led the defensive line with 78 tackles (39 solo) while adding 4.5 sacks. Montgomery joined the Packers in 2015 after coaching at the collegiate level for 11 seasons, which included eight seasons coaching the defensive line at the University of Oklahoma (2013-14), the University of Michigan (2011-12), the University of Wyoming (2009-10) and the University of Northern Iowa (2007-08). He began his coaching career at his alma mater, the University of Iowa, as a student assistant in 2002. Montgomery continued coaching as an assistant at Iowa City West High School (2003-04) and as the defensive coordinator at North Iowa Community College (2005) while also playing for the Chicago Rush, Colorado Crush and Las Vegas Gladiators of the Arena Football League (2003-05).
Montgomery had agreed to leave Green Bay to join the Texas A&M staff, but it appears McCarthy offered him a promotion to stay -- and Jimbo is still looking for his defensive tackles coach.