Is his Twitter handle "son of son of Bum?"
Awesome. He's so quiet, did not know he's on the staff until McVay became potential HC.
As for Elway/Shanahan, Mike left Denver in 2008. Here's the wiki summary of Elway's run:
"On January 5, 2011, Elway was named executive vice president of football operations of the Broncos,
with the final say in all football matters. In this capacity, he reports to team president Joe Ellis and is the immediate supervisor for head coach
Gary Kubiak and the former head coach
John Fox, who left the team in 2015 and currently the head coach for the Chicago Bears.
General manager Brian Xanders was retained, but served mostly in an advisory role to Elway.[53] Xanders left the team after the 2011 season, and Elway assumed the role of general manager which gave him complete control over the football side of the Broncos operation.
Under Elway's management, the team signed free agent quarterback
Peyton Manning who had just been released by the
Indianapolis Colts. In four seasons from 2012 to 2015, the Broncos won four division titles, two AFC Championships, and reached
Super Bowl XLVIII where they were crushed 43-8 by the
Seattle Seahawks despite holding the regular season's top offense.
Elway responded to the Super Bowl loss by signing defensive end
DeMarcus Ware, cornerback
Aqib Talib and safety
T.J. Ward for the 2014 season. After losing in the divisional playoffs to the Indianapolis Colts, Elway dismissed
John Fox, who had won four divisional championships in his four years as Broncos head coach.
Elway hired
Gary Kubiak, his former backup quarterback and former Broncos offensive coordinator, as the new head coach for the 2015 season. Elway and Kubiak also brought back
Wade Phillips, a former Broncos head coach, for his second stint as the team's defensive coordinator.
[54][55] Elway won a third Super Bowl as part of the Broncos franchise, when on February 7, 2016 Denver defeated the
Carolina Panthers 24-10 in
Super Bowl 50. This gave him his first Super Bowl win as Executive VP/GM, to go along with the two he won as the team's quarterback."
(emphasis added). Now it's wiki so errors may have crept in, but this is generally how I remember it. I think Elway has everything to do with Denver's run.
Joseph reportedly had been thoroughly vetted previously. I'm not shocked they did not wait for Shanahan to end his playoff run, which may not end for some time.